[MDB Ignore] Re-add hop console second ID slot (#92157)

## About The Pull Request

<img width="491" height="301" alt="image"
src="https://github.com/user-attachments/assets/a3b5b19f-edf5-4de9-9201-9cbfab9e8827"
/>

Mod computers with the access changing software installed have a
secondary ID slot once again. This ID slot doesn't contribute to access.
You can insert IDs into the slot with right click and remove them with
alt-right click.

Also removes the "New IDs and you" memo paper. 

Also tweaks PDA on_deconstruct so contents are dropped on when they're
deconstructed with assembly.

Fixes #92151

## Why It's Good For The Game

Changing IDs is very unnecessarily clunky with the one slot. Insert hop
id, log in, remove hop id, insert crew id, change access, remove crew
id, log out.

We had it right back when we had two slots. Insert hop ID, insert crew
id, log in. It just works.

This also allows for mobile HoPs to change access without necessitating
removing their ID from their PDA.

Other changes: 

The "New IDs and you" memo is very old. They haven't been new for 4
years now. I don't think anyone reads it and they served their purpose.

I found it odd that, if your PDA was melted or blown up, it would delete
your ID. If this is a hold-over from old PDA behavior feel free to let
me know but otherwise it seems sensible that it'd spit out the contents
as you would expect.

## Changelog

🆑 Melbert
qol: The access changing software (the HoP console) now has ID two slots
again (one for the HoP's id and one for the ID being changed). You can
insert IDs in the secondary slot via the UI or right click, and remove
them via the UI or alt-right click.
qol: If your PDA is destroyed via acid or bombs, your ID (and similar
contents such as disks) are spit out instead of being deleted
del: Deletes the "New IDs and you" memo in the HoP's office. They
haven't been new for 4 years.
fix: Engineering sub-tab in the access changing software no longer looks
messed up
fix: Fix reversed alt-click logic for mod pcs
/🆑

code/modules/modular_computers/computers/item/computer.dm

@@ -15,7 +15,9 @@
 	interaction_flags_mouse_drop = NEED_HANDS | ALLOW_RESTING
 
 	///The ID currently stored in the computer.
-	var/obj/item/card/id/computer_id_slot
+	var/obj/item/card/id/stored_id
+	///The alt slot, only used by certain UIs like the access app.
+	var/obj/item/card/id/alt_stored_id
 	///The disk in this PDA. If set, this will be inserted on Initialize.
 	var/obj/item/computer_disk/inserted_disk
 	///The power cell the computer uses to run on.
@@ -189,8 +191,9 @@
 		QDEL_NULL(inserted_disk)
 	if(istype(inserted_pai))
 		QDEL_NULL(inserted_pai)
-	if(computer_id_slot)
-		QDEL_NULL(computer_id_slot)
+
+	QDEL_NULL(stored_id)
+	QDEL_NULL(alt_stored_id)
 
 	shell = null
 	physical = null
@@ -230,7 +233,7 @@
 	if(issilicon(user))
 		return NONE
 
-	if(RemoveID(user))
+	if(remove_id(user))
 		return CLICK_ACTION_SUCCESS
 
 	if(istype(inserted_pai)) // Remove pAI
@@ -239,22 +242,31 @@
 
 	return CLICK_ACTION_BLOCKING
 
+/obj/item/modular_computer/click_alt_secondary(mob/user)
+	if(issilicon(user))
+		return NONE
+
+	if(remove_secondary_id(user))
+		return CLICK_ACTION_SUCCESS
+
+	return NONE
+
 // Gets IDs/access levels from card slot. Would be useful when/if PDAs would become modular PCs. //guess what
 /obj/item/modular_computer/GetAccess()
-	if(computer_id_slot)
-		return computer_id_slot.GetAccess()
+	if(stored_id)
+		return stored_id.GetAccess()
 	return ..()
 
 /obj/item/modular_computer/GetID()
-	if(computer_id_slot)
-		return computer_id_slot
+	if(stored_id)
+		return stored_id
 	return ..()
 
 /obj/item/modular_computer/get_id_examine_strings(mob/user)
 	. = ..()
-	if(computer_id_slot)
-		. += "[src] is displaying [computer_id_slot]:"
-		. += computer_id_slot.get_id_examine_strings(user)
+	if(stored_id)
+		. += "[src] is displaying [stored_id]:"
+		. += stored_id.get_id_examine_strings(user)
 
 /obj/item/modular_computer/proc/print_text(text_to_print, paper_title = "")
 	if(!stored_paper)
@@ -269,23 +281,23 @@
 	return TRUE
 
 /**
- * InsertID
  * Attempt to insert the ID in either card slot, if ID is present - attempts swap
+ *
  * Args:
  * inserting_id - the ID being inserted
  * user - The person inserting the ID
  */
-/obj/item/modular_computer/InsertID(obj/item/card/inserting_id, mob/user)
+/obj/item/modular_computer/insert_id(obj/item/card/inserting_id, mob/user)
 	if(!isnull(user) && !user.transferItemToLoc(inserting_id, src))
 		return FALSE
 
 	else
 		inserting_id.forceMove(src)
 
-	if(!isnull(computer_id_slot))
-		RemoveID(user, silent = TRUE)
+	if(!isnull(stored_id))
+		remove_id(user, silent = TRUE)
 
-	computer_id_slot = inserting_id
+	stored_id = inserting_id
 
 	if(!isnull(user))
 		to_chat(user, span_notice("You insert \the [inserting_id] into the card slot."))
@@ -303,30 +315,79 @@
 	SEND_SIGNAL(src, COMSIG_MODULAR_COMPUTER_INSERTED_ID, inserting_id, user)
 	return TRUE
 
+/**
+ * Attempts to insert a secondary ID card into the computer. If there is already a secondary ID card, attempts to swap
+ *
+ * Args:
+ * * secondary_id - The ID card to insert into the secondary slot.
+ * * user - The mob trying to insert the ID, if there is one.
+ */
+/obj/item/modular_computer/proc/insert_secondary_id(obj/item/card/id/secondary_id, mob/user)
+	if(!isnull(alt_stored_id))
+		remove_secondary_id(user, silent = TRUE)
+
+	if(!user.transferItemToLoc(secondary_id, src))
+		return FALSE
+
+	alt_stored_id = secondary_id
+	if(!isnull(user))
+		to_chat(user, span_notice("You insert \the [secondary_id] into the secondary card slot."))
+		balloon_alert(user, "inserted secondary ID")
+	playsound(src, 'sound/machines/terminal/terminal_insert_disc.ogg', 50, FALSE)
+
+	return TRUE
+
+/**
+ * Removes the alt ID card from the computer, and puts it in loc's hand if it's a mob
+ *
+ * Args:
+ * * user - The mob trying to remove the ID, if there is one
+ * * silent - Boolean, determines whether fluff text would be printed
+ */
+/obj/item/modular_computer/proc/remove_secondary_id(mob/user, silent = FALSE)
+	if(!alt_stored_id)
+		return FALSE
+
+	if(!issilicon(user) && in_range(src, user))
+		user.put_in_hands(alt_stored_id)
+	else
+		alt_stored_id.forceMove(drop_location())
+
+	var/obj/item/lost_id = alt_stored_id
+	alt_stored_id = null
+
+	if(!silent && !isnull(user))
+		to_chat(user, span_notice("You remove \the [lost_id] from the secondary card slot."))
+		balloon_alert(user, "removed secondary ID")
+	playsound(src, 'sound/machines/terminal/terminal_insert_disc.ogg', 50, FALSE)
+
+	return TRUE
+
 /**
  * Removes the ID card from the computer, and puts it in loc's hand if it's a mob
  * Args:
- * user - The mob trying to remove the ID, if there is one
- * silent - Boolean, determines whether fluff text would be printed
+ * * user - The mob trying to remove the ID, if there is one
+ * * silent - Boolean, determines whether fluff text would be printed
  */
-/obj/item/modular_computer/RemoveID(mob/user, silent = FALSE)
-	if(!computer_id_slot)
+/obj/item/modular_computer/remove_id(mob/user, silent = FALSE)
+	if(!stored_id)
 		return ..()
 
 	if(crew_manifest_update)
-		GLOB.manifest.modify(computer_id_slot.registered_name, computer_id_slot.assignment, computer_id_slot.get_trim_assignment())
+		GLOB.manifest.modify(stored_id.registered_name, stored_id.assignment, stored_id.get_trim_assignment())
 
 	if(user && !issilicon(user) && in_range(src, user))
-		user.put_in_hands(computer_id_slot)
+		user.put_in_hands(stored_id)
 	else
-		computer_id_slot.forceMove(drop_location())
+		stored_id.forceMove(drop_location())
 
-	computer_id_slot = null
+	var/obj/item/lost_id = stored_id
+	stored_id = null
 
 	if(!silent && !isnull(user))
-		to_chat(user, span_notice("You remove the card from the card slot."))
-		playsound(src, 'sound/machines/terminal/terminal_insert_disc.ogg', 50, FALSE)
+		to_chat(user, span_notice("You remove \the [lost_id] from the card slot."))
 		balloon_alert(user, "removed ID")
+	playsound(src, 'sound/machines/terminal/terminal_insert_disc.ogg', 50, FALSE)
 
 	if(ishuman(loc))
 		var/mob/living/carbon/human/human_wearer = loc
@@ -391,15 +452,20 @@
 		. += "It is upgraded with an experimental long-ranged network capabilities, picking up NTNet frequencies while further away."
 	. += span_notice("It has [max_capacity] GQ of storage capacity.")
 
-	if(computer_id_slot)
+	if(stored_id)
 		if(Adjacent(user))
-			. += "It has \the [computer_id_slot] card installed in its card slot."
+			. += "It has \the [stored_id] card inserted in its card slot.[alt_stored_id ? "" : " [span_info("Alt-click to eject it.")]"]"
 		else
 			. += "Its identification card slot is currently occupied."
-		. += span_info("Alt-click [src] to eject the identification card.")
+
+	if(alt_stored_id)
+		if(Adjacent(user))
+			. += "It has \the [alt_stored_id] card stored in its secondary card slot. [span_info("Alt-click to eject it.")]"
+		else
+			. += "Its secondary identification card slot is currently occupied."
 
 	if(internal_cell)
-		. += span_info("Right-click it with a screwdriver to eject the [internal_cell]")
+		. += span_info("Right-click it with a screwdriver to eject the [internal_cell].")
 
 /obj/item/modular_computer/examine_more(mob/user)
 	. = ..()
@@ -415,8 +481,10 @@
 /obj/item/modular_computer/add_context(atom/source, list/context, obj/item/held_item, mob/living/user)
 	. = ..()
 
-	if(computer_id_slot && isidcard(held_item))
-		context[SCREENTIP_CONTEXT_LMB] = "Swap ID"
+	if(isidcard(held_item))
+		context[SCREENTIP_CONTEXT_LMB] = stored_id ? "Swap ID" : "Insert ID"
+		if(HAS_TRAIT(src, TRAIT_MODPC_TWO_ID_SLOTS))
+			context[SCREENTIP_CONTEXT_RMB] = alt_stored_id ? "Swap Secondary ID" : "Insert Secondary ID"
 		. = CONTEXTUAL_SCREENTIP_SET
 
 	if(held_item?.tool_behaviour == TOOL_SCREWDRIVER && internal_cell)
@@ -426,7 +494,10 @@
 		context[SCREENTIP_CONTEXT_RMB] = "Deconstruct"
 		. = CONTEXTUAL_SCREENTIP_SET
 
-	if(computer_id_slot) // ID get removed first before pAIs
+	if(alt_stored_id)
+		context[SCREENTIP_CONTEXT_ALT_RMB] = "Remove Secondary ID"
+		. = CONTEXTUAL_SCREENTIP_SET
+	if(stored_id) // ID get removed first before pAIs
 		context[SCREENTIP_CONTEXT_ALT_LMB] = "Remove ID"
 		. = CONTEXTUAL_SCREENTIP_SET
 	else if(inserted_pai)
@@ -457,12 +528,14 @@
 		internal_cell = null
 		if(enabled && !use_energy())
 			shutdown_computer()
-	if(computer_id_slot == gone)
-		computer_id_slot = null
+	if(stored_id == gone)
+		stored_id = null
 		update_slot_icon()
 		if(ishuman(loc))
 			var/mob/living/carbon/human/human_wearer = loc
 			human_wearer.update_ID_card()
+	if(alt_stored_id == gone)
+		alt_stored_id = null
 	if(inserted_pai == gone)
 		update_appearance(UPDATE_ICON)
 	if(inserted_disk == gone)
@@ -718,8 +791,8 @@
 ///Imprints name and job into the modular computer, and calls back to necessary functions.
 ///Acts as a replacement to directly setting the imprints fields. All fields are optional, the proc will try to fill in missing gaps.
 /obj/item/modular_computer/proc/imprint_id(name = null, job_name = null)
-	saved_identification = name || computer_id_slot?.registered_name || saved_identification
-	saved_job = job_name || computer_id_slot?.assignment || saved_job
+	saved_identification = name || stored_id?.registered_name || saved_identification
+	saved_job = job_name || stored_id?.assignment || saved_job
 	SEND_SIGNAL(src, COMSIG_MODULAR_PDA_IMPRINT_UPDATED, saved_identification, saved_job)
 	UpdateDisplay()
 
@@ -823,9 +896,15 @@
 	update_appearance()
 	return ITEM_INTERACT_SUCCESS
 
+/obj/item/modular_computer/item_interaction_secondary(mob/living/user, obj/item/tool, list/modifiers)
+	if(isidcard(tool) && HAS_TRAIT(src, TRAIT_MODPC_TWO_ID_SLOTS))
+		return insert_secondary_id(tool, user) ? ITEM_INTERACT_SUCCESS : ITEM_INTERACT_BLOCKING
+
+	return item_interaction(user, tool, modifiers)
+
 /obj/item/modular_computer/item_interaction(mob/living/user, obj/item/tool, list/modifiers)
 	if(isidcard(tool))
-		return InsertID(tool, user) ? ITEM_INTERACT_SUCCESS : ITEM_INTERACT_BLOCKING
+		return insert_id(tool, user) ? ITEM_INTERACT_SUCCESS : ITEM_INTERACT_BLOCKING
 
 	if(iscash(tool))
 		return money_act(user, tool)
@@ -854,8 +933,10 @@
 	if(istype(tool, /obj/item/computer_disk))
 		return computer_disk_act(user, tool)
 
+	return NONE
+
 /obj/item/modular_computer/proc/money_act(mob/user, obj/item/money)
-	var/obj/item/card/id/inserted_id = computer_id_slot?.GetID()
+	var/obj/item/card/id/inserted_id = stored_id?.GetID()
 	if(!inserted_id)
 		balloon_alert(user, "no ID!")
 		return ITEM_INTERACT_BLOCKING
@@ -934,16 +1015,16 @@
 	return ITEM_INTERACT_SUCCESS
 
 /obj/item/modular_computer/atom_deconstruct(disassembled = TRUE)
+	var/atom/droploc = drop_location()
 	remove_pai()
 	eject_aicard()
-	if (disassembled)
-		internal_cell?.forceMove(drop_location())
-		computer_id_slot?.forceMove(drop_location())
-		inserted_disk?.forceMove(drop_location())
-		new /obj/item/stack/sheet/iron(drop_location(), steel_sheet_cost)
-	else
+	internal_cell?.forceMove(droploc)
+	stored_id?.forceMove(droploc)
+	alt_stored_id?.forceMove(droploc)
+	inserted_disk?.forceMove(droploc)
+	if (!disassembled)
 		physical.visible_message(span_notice("\The [src] breaks apart!"))
-		new /obj/item/stack/sheet/iron(drop_location(), round(steel_sheet_cost * 0.5))
+	new /obj/item/stack/sheet/iron(droploc, steel_sheet_cost * (disassembled ? 1 : 0.5))
 	relay_qdel()
 
 // Ejects the inserted intellicard, if one exists. Used when the computer is deconstructed.
@@ -998,7 +1079,7 @@
 		if(SEC_LEVEL_RED) // all-hands-on-deck situations, everyone is responsible for combatting a threat
 			return ALERT_RELEVANCY_PERTINENT
 		if(SEC_LEVEL_BLUE) // suspected threat. security needs to be alert and possibly preparing for it, no further concerns
-			if(ACCESS_SECURITY in computer_id_slot?.access)
+			if(ACCESS_SECURITY in stored_id?.access)
 				return ALERT_RELEVANCY_PERTINENT
 			else
 				return ALERT_RELEVANCY_WARN

code/modules/modular_computers/computers/item/computer_ui.dm

@@ -97,9 +97,9 @@
 	)
 
 	data["proposed_login"] = list(
-		IDInserted = computer_id_slot ? TRUE : FALSE,
-		IDName = computer_id_slot?.registered_name,
-		IDJob = computer_id_slot?.assignment,
+		IDInserted = stored_id ? TRUE : FALSE,
+		IDName = stored_id?.registered_name,
+		IDJob = stored_id?.assignment,
 	)
 
 	data["removable_media"] = list()
@@ -211,7 +211,7 @@
 						return TRUE
 
 				if("ID")
-					if(RemoveID(user))
+					if(remove_id(user))
 						playsound(src, 'sound/machines/card_slide.ogg', 50)
 						return TRUE
 

code/modules/modular_computers/computers/item/pda.dm

@@ -76,7 +76,7 @@
 
 /obj/item/modular_computer/pda/update_overlays()
 	. = ..()
-	if(computer_id_slot)
+	if(stored_id)
 		. += mutable_appearance(overlays_icon, "id_overlay")
 	if(light_on)
 		. += mutable_appearance(overlays_icon, "light_overlay")

code/modules/modular_computers/computers/machinery/modular_computer.dm

@@ -50,10 +50,16 @@
 	return ..()
 
 /obj/machinery/modular_computer/add_context(atom/source, list/context, obj/item/held_item, mob/user)
-	. = ..()
+	. = NONE
+
 	if(isnull(held_item))
 		context[SCREENTIP_CONTEXT_RMB] = "Toggle processor interaction"
-	return CONTEXTUAL_SCREENTIP_SET
+		. |= CONTEXTUAL_SCREENTIP_SET
+
+	if(CPU_INTERACTABLE(user))
+		. |= cpu?.add_context(source, context, held_item, user)
+
+	return .
 
 /obj/machinery/modular_computer/attack_hand_secondary(mob/user, list/modifiers)
 	. = ..()
@@ -117,11 +123,17 @@
 	return update_icon(updates)
 
 /obj/machinery/modular_computer/click_alt(mob/user)
-	if(CPU_INTERACTABLE(user) || !can_interact(user))
+	if(!CPU_INTERACTABLE(user) || !can_interact(user))
 		return NONE
 	cpu.click_alt(user)
 	return CLICK_ACTION_SUCCESS
 
+/obj/machinery/modular_computer/click_alt_secondary(mob/user)
+	if(!CPU_INTERACTABLE(user) || !can_interact(user))
+		return NONE
+	cpu.click_alt_secondary(user)
+	return CLICK_ACTION_SUCCESS
+
 //ATTACK HAND IGNORING PARENT RETURN VALUE
 // On-click handling. Turns on the computer if it's off and opens the GUI.
 /obj/machinery/modular_computer/interact(mob/user)
@@ -157,6 +169,9 @@
 /obj/machinery/modular_computer/item_interaction(mob/living/user, obj/item/tool, list/modifiers)
 	return (CPU_INTERACTABLE(user) && !user.combat_mode) ? cpu.item_interaction(user, tool, modifiers) : ..()
 
+/obj/machinery/modular_computer/item_interaction_secondary(mob/living/user, obj/item/tool, list/modifiers)
+	return (CPU_INTERACTABLE(user) && !user.combat_mode) ? cpu.item_interaction_secondary(user, tool, modifiers) : ..()
+
 /obj/machinery/modular_computer/attacked_by(obj/item/attacking_item, mob/living/user, list/modifiers, list/attack_modifiers)
 	return CPU_INTERACTABLE(user) ? cpu.attacked_by(attacking_item, user, modifiers, attack_modifiers) : ..()
 

code/modules/modular_computers/file_system/program.dm

@@ -173,7 +173,7 @@
 	if(!length(access))
 		var/obj/item/card/id/accesscard
 		if(computer)
-			accesscard = computer.computer_id_slot?.GetID()
+			accesscard = computer.stored_id?.GetID()
 
 		if(!accesscard)
 			if(loud && user)
@@ -202,7 +202,7 @@
 	if(!can_run(user, loud = TRUE))
 		return FALSE
 	if(program_flags & PROGRAM_REQUIRES_NTNET)
-		var/obj/item/card/id/ID = computer.computer_id_slot?.GetID()
+		var/obj/item/card/id/ID = computer.stored_id?.GetID()
 		generate_network_log("Connection opened -- Program ID:[filename] User:[ID?"[ID.registered_name]":"None"]")
 	SEND_SIGNAL(src, COMSIG_COMPUTER_PROGRAM_START, user)
 	return TRUE
@@ -228,7 +228,7 @@
 		return FALSE
 
 	if(program_flags & PROGRAM_REQUIRES_NTNET)
-		var/obj/item/card/id/ID = computer.computer_id_slot?.GetID()
+		var/obj/item/card/id/ID = computer.stored_id?.GetID()
 		generate_network_log("Connection closed -- Program ID: [filename] User:[ID ? "[ID.registered_name]" : "None"]")
 
 	computer.update_appearance(UPDATE_ICON)

code/modules/modular_computers/file_system/programs/betting.dm

@@ -40,17 +40,17 @@ GLOBAL_LIST_EMPTY_TYPED(active_bets, /datum/active_bet)
 			"description" = bets.description,
 			"owner" = bets == created_bet,
 			"creator" = bets.bet_owner,
-			"current_bets" = bets.get_bets(computer.computer_id_slot?.registered_account),
+			"current_bets" = bets.get_bets(computer.stored_id?.registered_account),
 			"locked" = bets.locked,
 		))
 
 	data["can_create_bet"] = !!isnull(created_bet)
-	if(isnull(computer.computer_id_slot))
+	if(isnull(computer.stored_id))
 		data["bank_name"] = null
 		data["bank_money"] = null
 	else
-		data["bank_name"] = computer.computer_id_slot.registered_account.account_holder
-		data["bank_money"] = computer.computer_id_slot.registered_account.account_balance
+		data["bank_name"] = computer.stored_id.registered_account.account_holder
+		data["bank_money"] = computer.stored_id.registered_account.account_balance
 
 	return data
 
@@ -63,7 +63,7 @@ GLOBAL_LIST_EMPTY_TYPED(active_bets, /datum/active_bet)
 /datum/computer_file/program/betting/ui_act(action, list/params, datum/tgui/ui, datum/ui_state/state)
 	. = ..()
 	var/mob/user = ui.user
-	if(isnull(computer.computer_id_slot))
+	if(isnull(computer.stored_id))
 		to_chat(user, span_danger("\The [computer] flashes an \"RFID Error - Unable to scan ID\" warning."))
 		return
 	switch(action)
@@ -102,14 +102,14 @@ GLOBAL_LIST_EMPTY_TYPED(active_bets, /datum/active_bet)
 			var/option = params["option_selected"]
 			if(isnull(bet_placed_on))
 				return
-			bet_placed_on.bet_money(computer.computer_id_slot.registered_account, money_betting, option)
+			bet_placed_on.bet_money(computer.stored_id.registered_account, money_betting, option)
 			return TRUE
 		if("cancel_bet")
 			var/datum/active_bet/bet_cancelling
 			for(var/datum/active_bet/bets as anything in GLOB.active_bets)
 				if(bets.name == params["bet_selected"])
 					bet_cancelling = bets
-			bet_cancelling.cancel_bet(computer.computer_id_slot.registered_account)
+			bet_cancelling.cancel_bet(computer.stored_id.registered_account)
 			return TRUE
 		if("select_winner")
 			var/datum/active_bet/bets_ending

code/modules/modular_computers/file_system/programs/bounty_board.dm

@@ -39,8 +39,8 @@
 	if(!networked)
 		GLOB.allbountyboards += computer
 		networked = TRUE
-	if(computer.computer_id_slot)
-		current_user = computer.computer_id_slot?.registered_account
+	if(computer.stored_id)
+		current_user = computer.stored_id?.registered_account
 	for(var/i in GLOB.request_list)
 		if(!i)
 			continue

code/modules/modular_computers/file_system/programs/budgetordering.dm

@@ -48,7 +48,7 @@
 
 	//Aquire access from the inserted ID card.
 	if(!length(access))
-		var/obj/item/card/id/D = computer?.computer_id_slot?.GetID()
+		var/obj/item/card/id/D = computer?.stored_id?.GetID()
 		if(!D)
 			return FALSE
 		access = D.GetAccess()
@@ -63,7 +63,7 @@
 	data["location"] = SSshuttle.supply.getStatusText()
 	data["department"] = "Cargo"
 	var/datum/bank_account/buyer = SSeconomy.get_dep_account(cargo_account)
-	var/obj/item/card/id/id_card = computer.computer_id_slot?.GetID()
+	var/obj/item/card/id/id_card = computer.stored_id?.GetID()
 	if(id_card?.registered_account)
 		if((ACCESS_COMMAND in id_card.access))
 			requestonly = FALSE
@@ -109,7 +109,6 @@
 		))
 
 	//Data regarding the User's capability to buy things.
-	data["has_id"] = id_card
 	data["away"] = SSshuttle.supply.getDockedId() == docking_away
 	data["self_paid"] = self_paid
 	data["docked"] = SSshuttle.supply.mode == SHUTTLE_IDLE
@@ -244,7 +243,7 @@
 					return
 
 			var/reason = ""
-			if((requestonly && !self_paid) || !(computer.computer_id_slot?.GetID()))
+			if((requestonly && !self_paid) || !(computer.stored_id?.GetID()))
 				reason = tgui_input_text(usr, "Reason", name, max_length = MAX_MESSAGE_LEN)
 				if(isnull(reason) || ..())
 					return
@@ -260,13 +259,13 @@
 				return
 
 			if(!requestonly && !self_paid && ishuman(usr) && !account)
-				var/obj/item/card/id/id_card = computer.computer_id_slot?.GetID()
+				var/obj/item/card/id/id_card = computer.stored_id?.GetID()
 				account = SSeconomy.get_dep_account(id_card?.registered_account?.account_job.paycheck_department)
 
 			var/turf/T = get_turf(computer)
 			var/datum/supply_order/SO = new(pack, name, rank, ckey, reason, account)
 			SO.generateRequisition(T)
-			if((requestonly && !self_paid) || !(computer.computer_id_slot?.GetID()))
+			if((requestonly && !self_paid) || !(computer.stored_id?.GetID()))
 				SSshuttle.request_list += SO
 			else
 				SSshuttle.shopping_list += SO
@@ -290,7 +289,7 @@
 			var/id = text2num(params["id"])
 			for(var/datum/supply_order/SO in SSshuttle.request_list)
 				if(SO.id == id)
-					var/obj/item/card/id/id_card = computer.computer_id_slot?.GetID()
+					var/obj/item/card/id/id_card = computer.stored_id?.GetID()
 					if(id_card && id_card?.registered_account)
 						SO.paying_account = SSeconomy.get_dep_account(id_card?.registered_account?.account_job.paycheck_department)
 					SSshuttle.request_list -= SO

code/modules/modular_computers/file_system/programs/card.dm

@@ -26,6 +26,15 @@
 	/// Which departments this program has access to. See region defines.
 	var/target_dept
 
+/datum/computer_file/program/card_mod/on_install(datum/computer_file/source, obj/item/modular_computer/computer_installing)
+	. = ..()
+	ADD_TRAIT(computer_installing, TRAIT_MODPC_TWO_ID_SLOTS, REF(src))
+
+/datum/computer_file/program/card_mod/Destroy()
+	if(computer)
+		REMOVE_TRAIT(computer, TRAIT_MODPC_TWO_ID_SLOTS, REF(src))
+	return ..()
+
 /**
  * Authenticates the program based on the specific ID card.
  *
@@ -80,24 +89,25 @@
 
 /datum/computer_file/program/card_mod/kill_program(mob/user)
 	computer.crew_manifest_update = FALSE
-	var/obj/item/card/id/inserted_auth_card = computer.computer_id_slot
-	if(inserted_auth_card)
-		GLOB.manifest.modify(inserted_auth_card.registered_name, inserted_auth_card.assignment, inserted_auth_card.get_trim_assignment())
+	var/obj/item/card/id/modified_id = computer.alt_stored_id
+	if(modified_id)
+		GLOB.manifest.modify(modified_id.registered_name, modified_id.assignment, modified_id.get_trim_assignment())
 
 	return ..()
 
 /datum/computer_file/program/card_mod/ui_act(action, params, datum/tgui/ui, datum/ui_state/state)
 	. = ..()
 	var/mob/user = usr
-	var/obj/item/card/id/inserted_auth_card = computer.computer_id_slot
+	var/obj/item/card/id/auth_card = computer.stored_id
+	var/obj/item/card/id/modified_id = computer.alt_stored_id
 
 	switch(action)
 		// Log in.
 		if("PRG_authenticate")
-			if(!computer || !inserted_auth_card)
+			if(!computer || !auth_card)
 				playsound(computer, 'sound/machines/terminal/terminal_prompt_deny.ogg', 50, FALSE)
 				return TRUE
-			if(authenticate(user, inserted_auth_card))
+			if(authenticate(user, auth_card))
 				playsound(computer, 'sound/machines/terminal/terminal_on.ogg', 50, FALSE)
 				return TRUE
 		// Log out.
@@ -108,71 +118,61 @@
 			return TRUE
 		// Print a report.
 		if("PRG_print")
-			if(!computer)
-				return TRUE
-			if(!authenticated_card)
+			if(!computer || !authenticated_card || !modified_id)
 				return TRUE
 			var/contents = {"<h4>Access Report</h4>
 						<u>Prepared By:</u> [authenticated_user]<br>
-						<u>For:</u> [inserted_auth_card.registered_name ? inserted_auth_card.registered_name : "Unregistered"]<br>
+						<u>For:</u> [modified_id.registered_name || "Unregistered"]<br>
 						<hr>
-						<u>Assignment:</u> [inserted_auth_card.assignment]<br>
+						<u>Assignment:</u> [modified_id.assignment]<br>
 						<u>Access:</u><br>
 						"}
 
 			var/list/known_access_rights = SSid_access.get_region_access_list(list(REGION_ALL_STATION))
-			for(var/A in inserted_auth_card.access)
+			for(var/A in modified_id.access)
 				if(A in known_access_rights)
 					contents += " [SSid_access.get_access_desc(A)]"
 
-			if(!computer.print_text(contents, "access report - [inserted_auth_card.registered_name ? inserted_auth_card.registered_name : "Unregistered"]"))
+			if(!computer.print_text(contents, "access report - [modified_id.registered_name || "Unregistered"]"))
 				to_chat(usr, span_notice("Printer is out of paper."))
 				return TRUE
 			else
 				playsound(computer, 'sound/machines/terminal/terminal_on.ogg', 50, FALSE)
 				computer.visible_message(span_notice("\The [computer] prints out a paper."))
 			return TRUE
-		if("PRG_eject_id")
-			if(inserted_auth_card)
-				return computer.RemoveID(usr)
-			else
-				var/obj/item/I = user.get_active_held_item()
-				if(isidcard(I))
-					return computer.InsertID(I, user)
-			return TRUE
 		// Used to fire someone. Wipes all access from their card and modifies their assignment.
 		if("PRG_terminate")
 			if(!computer || !authenticated_card)
 				return TRUE
 			if(minor)
-				if(!(inserted_auth_card.trim?.type in job_templates))
+				if(!(modified_id.trim?.type in job_templates))
 					to_chat(usr, span_notice("Software error: You do not have the necessary permissions to demote this card."))
 					return TRUE
 
 			// Set the new assignment then remove the trim.
-			inserted_auth_card.assignment = is_centcom ? "Fired" : "Demoted"
-			SSid_access.remove_trim_from_card(inserted_auth_card)
+			modified_id.assignment = is_centcom ? "Fired" : "Demoted"
+			SSid_access.remove_trim_from_card(modified_id)
 
 			playsound(computer, 'sound/machines/terminal/terminal_prompt_deny.ogg', 50, FALSE)
 			return TRUE
 		// Change ID card assigned name.
 		if("PRG_edit")
-			if(!computer || !authenticated_card || !inserted_auth_card)
+			if(!computer || !authenticated_card || !modified_id)
 				return TRUE
 
-			var/old_name = inserted_auth_card.registered_name
+			var/old_name = modified_id.registered_name
 
 			// Sanitize the name first. We're not using the full sanitize_name proc as ID cards can have a wider variety of things on them that
 			// would not pass as a formal character name, but would still be valid on an ID card created by a player.
 			var/new_name = sanitize(params["name"])
 
 			if(!new_name)
-				inserted_auth_card.registered_name = null
+				modified_id.registered_name = null
 				playsound(computer, SFX_TERMINAL_TYPE, 50, FALSE)
-				inserted_auth_card.update_label()
+				modified_id.update_label()
 				// We had a name before and now we have no name, so this will unassign the card and we update the icon.
 				if(old_name)
-					inserted_auth_card.update_icon()
+					modified_id.update_icon()
 				return TRUE
 
 			// However, we are going to reject bad names overall including names with invalid characters in them, while allowing numbers.
@@ -182,63 +182,63 @@
 				to_chat(usr, span_notice("Software error: The ID card rejected the new name as it contains prohibited characters."))
 				return TRUE
 
-			inserted_auth_card.registered_name = new_name
+			modified_id.registered_name = new_name
 			playsound(computer, SFX_TERMINAL_TYPE, 50, FALSE)
-			inserted_auth_card.update_label()
+			modified_id.update_label()
 			// Card wasn't assigned before and now it is, so update the icon accordingly.
 			if(!old_name)
-				inserted_auth_card.update_icon()
+				modified_id.update_icon()
 			return TRUE
 		// Change age
 		if("PRG_age")
-			if(!computer || !authenticated_card || !inserted_auth_card)
+			if(!computer || !authenticated_card || !modified_id)
 				return TRUE
 
 			var/new_age = params["id_age"]
 			if(!isnum(new_age))
-				stack_trace("[key_name(usr)] ([usr]) attempted to set invalid age \[[new_age]\] to [inserted_auth_card]")
+				stack_trace("[key_name(usr)] ([usr]) attempted to set invalid age \[[new_age]\] to [modified_id]")
 				return TRUE
 
-			inserted_auth_card.registered_age = new_age
+			modified_id.registered_age = new_age
 			playsound(computer, SFX_TERMINAL_TYPE, 50, FALSE)
 			return TRUE
 		// Change assignment
 		if("PRG_assign")
-			if(!computer || !authenticated_card || !inserted_auth_card)
+			if(!computer || !authenticated_card || !modified_id)
 				return TRUE
 			var/new_asignment = trim(sanitize(params["assignment"]), MAX_NAME_LEN)
-			inserted_auth_card.assignment = new_asignment
+			modified_id.assignment = new_asignment
 			playsound(computer, SFX_TERMINAL_TYPE, 50, FALSE)
-			inserted_auth_card.update_label()
+			modified_id.update_label()
 			return TRUE
 		// Add/remove access.
 		if("PRG_access")
-			if(!computer || !authenticated_card || !inserted_auth_card)
+			if(!computer || !authenticated_card || !modified_id)
 				return TRUE
 			playsound(computer, SFX_TERMINAL_TYPE, 50, FALSE)
 			var/access_type = params["access_target"]
 			var/try_wildcard = params["access_wildcard"]
 			if(!(access_type in valid_access))
-				stack_trace("[key_name(usr)] ([usr]) attempted to add invalid access \[[access_type]\] to [inserted_auth_card]")
+				stack_trace("[key_name(usr)] ([usr]) attempted to add invalid access \[[access_type]\] to [modified_id]")
 				return TRUE
 
-			if(access_type in inserted_auth_card.access)
-				inserted_auth_card.remove_access(list(access_type))
-				LOG_ID_ACCESS_CHANGE(user, inserted_auth_card, "removed [SSid_access.get_access_desc(access_type)]")
+			if(access_type in modified_id.access)
+				modified_id.remove_access(list(access_type))
+				LOG_ID_ACCESS_CHANGE(user, modified_id, "removed [SSid_access.get_access_desc(access_type)]")
 				return TRUE
 
-			if(!inserted_auth_card.add_access(list(access_type), try_wildcard))
+			if(!modified_id.add_access(list(access_type), try_wildcard))
 				to_chat(usr, span_notice("ID error: ID card rejected your attempted access modification."))
-				LOG_ID_ACCESS_CHANGE(user, inserted_auth_card, "failed to add [SSid_access.get_access_desc(access_type)][try_wildcard ? " with wildcard [try_wildcard]" : ""]")
+				LOG_ID_ACCESS_CHANGE(user, modified_id, "failed to add [SSid_access.get_access_desc(access_type)][try_wildcard ? " with wildcard [try_wildcard]" : ""]")
 				return TRUE
 
 			if(access_type in ACCESS_ALERT_ADMINS)
-				message_admins("[ADMIN_LOOKUPFLW(user)] just added [SSid_access.get_access_desc(access_type)] to an ID card [ADMIN_VV(inserted_auth_card)] [(inserted_auth_card.registered_name) ? "belonging to [inserted_auth_card.registered_name]." : "with no registered name."]")
-			LOG_ID_ACCESS_CHANGE(user, inserted_auth_card, "added [SSid_access.get_access_desc(access_type)]")
+				message_admins("[ADMIN_LOOKUPFLW(user)] just added [SSid_access.get_access_desc(access_type)] to an ID card [ADMIN_VV(modified_id)] [(modified_id.registered_name) ? "belonging to [modified_id.registered_name]." : "with no registered name."]")
+			LOG_ID_ACCESS_CHANGE(user, modified_id, "added [SSid_access.get_access_desc(access_type)]")
 			return TRUE
 		// Apply template to ID card.
 		if("PRG_template")
-			if(!computer || !authenticated_card || !inserted_auth_card)
+			if(!computer || !authenticated_card || !modified_id)
 				return TRUE
 
 			playsound(computer, SFX_TERMINAL_TYPE, 50, FALSE)
@@ -252,18 +252,36 @@
 				if(trim.assignment != template_name)
 					continue
 
-				SSid_access.add_trim_access_to_card(inserted_auth_card, trim_path)
+				SSid_access.add_trim_access_to_card(modified_id, trim_path)
 				return TRUE
 
-			stack_trace("[key_name(usr)] ([usr]) attempted to apply invalid template \[[template_name]\] to [inserted_auth_card]")
+			stack_trace("[key_name(usr)] ([usr]) attempted to apply invalid template \[[template_name]\] to [modified_id]")
 
 			return TRUE
+		if("PRG_insert_main_id")
+			var/obj/item/card/id/main_id = user.get_active_held_item()
+			if(!isidcard(main_id))
+				return TRUE
+			computer.insert_id(main_id, user)
+			return TRUE
+		if("PRG_remove_main_id")
+			if(computer?.stored_id)
+				computer.remove_id(user)
+			return TRUE
+		if("PRG_insert_alt_id")
+			var/obj/item/card/id/alt_id = user.get_active_held_item()
+			if(!isidcard(alt_id))
+				to_chat(user, span_notice("You must hold an ID card to insert it into the secondary slot."))
+				return TRUE
+			computer.insert_secondary_id(alt_id, user)
+			return TRUE
+		if("PRG_remove_alt_id")
+			if(computer?.alt_stored_id)
+				computer.remove_secondary_id(user)
+			return TRUE
 
 /datum/computer_file/program/card_mod/ui_static_data(mob/user)
 	var/list/data = list()
-	data["station_name"] = station_name()
-	data["centcom_access"] = is_centcom
-	data["minor"] = target_dept || minor ? TRUE : FALSE
 
 	var/list/regions = list()
 	var/list/tgui_region_data = SSid_access.all_region_access_tgui
@@ -277,11 +295,10 @@
 
 	data["regions"] = regions
 
-
-	data["accessFlags"] = SSid_access.flags_by_access
-	data["wildcardFlags"] = SSid_access.wildcard_flags_by_wildcard
-	data["accessFlagNames"] = SSid_access.access_flag_string_by_flag
-	data["showBasic"] = TRUE
+	data["access_flags"] = SSid_access.flags_by_access
+	data["wildcard_flags"] = SSid_access.wildcard_flags_by_wildcard
+	data["access_flag_names"] = SSid_access.access_flag_string_by_flag
+	data["show_basic"] = TRUE
 	data["templates"] = job_templates
 
 	return data
@@ -289,27 +306,31 @@
 /datum/computer_file/program/card_mod/ui_data(mob/user)
 	var/list/data = list()
 
-	var/obj/item/card/id/inserted_id = computer.computer_id_slot
-	data["authIDName"] = inserted_id ? inserted_id.name : "-----"
-	data["authenticatedUser"] = authenticated_card
+	data["authed_user"] = authenticated_card
 
-	data["has_id"] = !!inserted_id
-	data["id_name"] = inserted_id ? inserted_id.name : "-----"
-	if(inserted_id)
-		data["id_rank"] = inserted_id.assignment ? inserted_id.assignment : "Unassigned"
-		data["id_owner"] = inserted_id.registered_name ? inserted_id.registered_name : "-----"
-		data["access_on_card"] = inserted_id.access
-		data["wildcardSlots"] = inserted_id.wildcard_slots
-		data["id_age"] = inserted_id.registered_age
+	var/obj/item/card/id/auth_id = computer.stored_id
+	var/obj/item/card/id/modified_id = computer.alt_stored_id
 
-		if(inserted_id.trim)
-			var/datum/id_trim/card_trim = inserted_id.trim
-			data["hasTrim"] = TRUE
-			data["trimAssignment"] = card_trim.assignment ? card_trim.assignment : ""
-			data["trimAccess"] = card_trim.access ? card_trim.access : list()
-		else
-			data["hasTrim"] = FALSE
-			data["trimAssignment"] = ""
-			data["trimAccess"] = list()
+	data["auth_card"] = auth_id ? get_id_ui_data(auth_id) : null
+	data["modified_card"] = modified_id ? get_id_ui_data(modified_id) : null
+	data["is_holding_id"] = isidcard(user.get_active_held_item())
+
+	return data
+
+/datum/computer_file/program/card_mod/proc/get_id_ui_data(obj/item/card/id/card)
+	var/list/data = list()
+
+	var/datum/id_trim/card_trim = card.trim
+
+	data["id_name"] = card.name
+	data["id_rank"] = card.assignment || "Unassigned"
+	data["id_owner"] = card.registered_name || "-----"
+	data["access_on_card"] = card.access || list()
+	data["wildcard_slots"] = card.wildcard_slots || list()
+	data["id_age"] = card.registered_age
+
+	data["has_trim"] = !!card_trim
+	data["trim_assignment"] = card_trim?.assignment || ""
+	data["trim_access"] = card_trim?.access || list()
 
 	return data

code/modules/modular_computers/file_system/programs/cargoship.dm

@@ -19,26 +19,26 @@
 /datum/computer_file/program/shipping/ui_data(mob/user)
 	var/list/data = list()
 
-	data["has_id_slot"] = !!computer.computer_id_slot
+	data["has_id_slot"] = !!computer.stored_id
 	data["paperamt"] = "[computer.stored_paper] / [computer.max_paper]"
-	data["card_owner"] = computer.computer_id_slot || "No Card Inserted."
+	data["card_owner"] = computer.stored_id || "No Card Inserted."
 	data["current_user"] = payments_acc ? payments_acc.account_holder : null
 	data["barcode_split"] = cut_multiplier * 100
 	return data
 
 /datum/computer_file/program/shipping/ui_act(action, list/params, datum/tgui/ui, datum/ui_state/state)
 	. = ..()
-	if(!computer.computer_id_slot) //We need an ID to successfully run
+	if(!computer.stored_id) //We need an ID to successfully run
 		return FALSE
 
 	switch(action)
 		if("ejectid")
-			computer.RemoveID(usr)
+			computer.remove_id(usr)
 		if("selectid")
-			if(!computer.computer_id_slot.registered_account)
+			if(!computer.stored_id.registered_account)
 				playsound(get_turf(computer.ui_host()), 'sound/machines/buzz/buzz-sigh.ogg', 50, TRUE, -1)
 				return TRUE
-			payments_acc = computer.computer_id_slot.registered_account
+			payments_acc = computer.stored_id.registered_account
 			playsound(get_turf(computer.ui_host()), 'sound/machines/ping.ogg', 50, TRUE, -1)
 		if("resetid")
 			payments_acc = null

code/modules/modular_computers/file_system/programs/coupon.dm

@@ -30,7 +30,7 @@
 	data["printed_coupons"] = list()
 	data["redeemed_coupons"] = list()
 	data["valid_id"] = FALSE
-	var/obj/item/card/id/user_id = computer.computer_id_slot
+	var/obj/item/card/id/user_id = computer.stored_id
 	if(user_id?.registered_account.add_to_accounts)
 		for(var/datum/coupon_code/coupon as anything in user_id.registered_account.redeemed_coupons)
 			var/list/coupon_data = list(
@@ -46,7 +46,7 @@
 
 /datum/computer_file/program/coupon/ui_act(action, params, datum/tgui/ui, datum/ui_state/state)
 	. = ..()
-	var/obj/item/card/id/user_id = computer.computer_id_slot
+	var/obj/item/card/id/user_id = computer.stored_id
 	if(!(user_id?.registered_account.add_to_accounts))
 		return TRUE
 	switch(action)
@@ -91,7 +91,7 @@
 /datum/computer_file/program/coupon/tap(atom/tapped_atom, mob/living/user, list/modifiers)
 	if(!istype(tapped_atom, /obj/machinery/photocopier))
 		return FALSE
-	var/obj/item/card/id/user_id = computer.computer_id_slot
+	var/obj/item/card/id/user_id = computer.stored_id
 	if(!(user_id?.registered_account))
 		computer.balloon_alert(user, "no bank account found!")
 		return TRUE

code/modules/modular_computers/file_system/programs/dept_order.dm

@@ -64,7 +64,7 @@ GLOBAL_VAR(department_cd_override)
 /datum/computer_file/program/department_order/ui_data(mob/user)
 	var/list/data = list()
 	data["no_link"] = !linked_department
-	data["id_inside"] = !!computer.computer_id_slot
+	data["id_inside"] = !!computer.stored_id
 	data["time_left"] = department_cooldowns[linked_department] ? DisplayTimeText(max(department_cooldowns[linked_department] - world.time, 0), 1) : null
 	data["can_override"] = !!department_order
 	return data
@@ -142,7 +142,7 @@ GLOBAL_VAR(department_cd_override)
 		if(!isnull(linked_department))
 			return TRUE
 
-		var/new_dept_type = find_department_to_link(computer.computer_id_slot)
+		var/new_dept_type = find_department_to_link(computer.stored_id)
 		if(isnull(new_dept_type))
 			computer.physical.balloon_alert(orderer, "no department found!")
 			playsound(computer, 'sound/machines/buzz/buzz-sigh.ogg', 30, TRUE)
@@ -155,7 +155,7 @@ GLOBAL_VAR(department_cd_override)
 	if(isnull(linked_department))
 		return TRUE
 
-	var/obj/item/card/id/id_card = computer.computer_id_slot || orderer.get_idcard(hand_first = TRUE)
+	var/obj/item/card/id/id_card = computer.stored_id || orderer.get_idcard(hand_first = TRUE)
 	var/list/id_card_access = id_card?.GetAccess() || list()
 
 	if(length(use_access & id_card_access) <= 0)

code/modules/modular_computers/file_system/programs/jobmanagement.dm

@@ -55,7 +55,7 @@ GLOBAL_VAR_INIT(time_last_changed_position, 0)
 
 /datum/computer_file/program/job_management/ui_act(action, params, datum/tgui/ui, datum/ui_state/state)
 	. = ..()
-	var/obj/item/card/id/user_id = computer.computer_id_slot
+	var/obj/item/card/id/user_id = computer.stored_id
 	if(!user_id || !(ACCESS_CHANGE_IDS in user_id.access))
 		return TRUE
 
@@ -107,7 +107,7 @@ GLOBAL_VAR_INIT(time_last_changed_position, 0)
 	var/list/data = list()
 
 	var/authed = FALSE
-	var/obj/item/card/id/user_id = computer.computer_id_slot
+	var/obj/item/card/id/user_id = computer.stored_id
 	if(user_id && (ACCESS_CHANGE_IDS in user_id.access))
 		authed = TRUE
 

code/modules/modular_computers/file_system/programs/nt_pay.dm

@@ -42,7 +42,7 @@
 /datum/computer_file/program/nt_pay/ui_data(mob/user)
 	var/list/data = list()
 
-	current_user = computer.computer_id_slot?.registered_account || null
+	current_user = computer.stored_id?.registered_account || null
 	if(!current_user)
 		data["name"] = null
 	else
@@ -127,14 +127,14 @@
 	var/obj/item/modular_computer/modpc = associated_program.computer
 	RegisterSignal(modpc, COMSIG_MODULAR_COMPUTER_NT_PAY_RESULT, PROC_REF(on_payment_done))
 	RegisterSignal(modpc, COMSIG_MODULAR_COMPUTER_INSERTED_ID, PROC_REF(register_id))
-	if(modpc.computer_id_slot)
-		register_id(inserted_id = modpc.computer_id_slot)
+	if(modpc.stored_id)
+		register_id(inserted_id = modpc.stored_id)
 
 /obj/item/circuit_component/mod_program/nt_pay/unregister_shell()
 	var/obj/item/modular_computer/modpc = associated_program.computer
 	UnregisterSignal(modpc, list(COMSIG_MODULAR_COMPUTER_NT_PAY_RESULT, COMSIG_MODULAR_COMPUTER_INSERTED_ID))
-	if(modpc.computer_id_slot)
-		UnregisterSignal(modpc.computer_id_slot, list(COMSIG_ID_CARD_NTPAY_MONEY_RECEIVED, COMSIG_MOVABLE_MOVED))
+	if(modpc.stored_id)
+		UnregisterSignal(modpc.stored_id, list(COMSIG_ID_CARD_NTPAY_MONEY_RECEIVED, COMSIG_MOVABLE_MOVED))
 	return ..()
 
 /obj/item/circuit_component/mod_program/nt_pay/proc/register_id(datum/source, obj/item/card/inserted_id, mob/user)

code/modules/modular_computers/file_system/programs/robocontrol.dm

@@ -28,14 +28,14 @@
 	var/list/mulelist = list()
 
 	if(computer)
-		data["id_owner"] = computer.computer_id_slot || ""
+		data["id_owner"] = computer.stored_id || ""
 
 	botcount = 0
 
 	for(var/mob/living/simple_animal/bot/simple_bot as anything in GLOB.bots_list)
 		if(!is_valid_z_level(current_turf, get_turf(simple_bot)) || !(simple_bot.bot_mode_flags & BOT_MODE_REMOTE_ENABLED)) //Only non-emagged bots on the same Z-level are detected!
 			continue
-		if(!simple_bot.allowed(user) && !simple_bot.check_access(computer.computer_id_slot)) // Only check Bots we can access
+		if(!simple_bot.allowed(user) && !simple_bot.check_access(computer.stored_id)) // Only check Bots we can access
 			continue
 		var/list/newbot = list(
 			"name" = simple_bot.name,
@@ -86,7 +86,7 @@
 /datum/computer_file/program/robocontrol/ui_act(action, list/params, datum/tgui/ui, datum/ui_state/state)
 	. = ..()
 	var/mob/current_user = ui.user
-	var/obj/item/card/id/id_card = computer?.computer_id_slot
+	var/obj/item/card/id/id_card = computer?.stored_id
 
 	var/static/list/standard_actions = list(
 		"patroloff",
@@ -116,15 +116,15 @@
 		if("summon")
 			simple_bot.bot_control(action, current_user, id_card ? id_card.access : id_card?.GetAccess())
 		if("ejectcard")
-			if(!computer || !computer.computer_id_slot)
+			if(!computer || !computer.stored_id)
 				return
 			if(id_card)
 				GLOB.manifest.modify(id_card.registered_name, id_card.assignment, id_card.get_trim_assignment())
-				computer.RemoveID(usr)
+				computer.remove_id(usr)
 			else
 				playsound(get_turf(computer.ui_host()) , 'sound/machines/buzz/buzz-sigh.ogg', 25, FALSE)
 		if("changedroneaccess")
-			if(!computer || !computer.computer_id_slot || !id_card)
+			if(!computer || !computer.stored_id || !id_card)
 				to_chat(current_user, span_notice("No ID found, authorization failed."))
 				return
 			if(isdrone(current_user))

code/modules/modular_computers/file_system/programs/techweb.dm

@@ -111,7 +111,7 @@
 			if(computer.obj_flags & EMAGGED)
 				to_chat(usr, span_boldwarning("Security protocol error: Unable to access locking protocols."))
 				return TRUE
-			if(lock_access in computer?.computer_id_slot?.access)
+			if(lock_access in computer?.stored_id?.access)
 				locked = !locked
 			else
 				to_chat(usr, span_boldwarning("Unauthorized Access. Please insert research ID card."))