* Adds Changing Order of Markings
Clicking the back button on a marking will trade its place with the previous marking or move it to the end of the list if it's the first marking.
Clicking the forward button on a marking will trade its place with the next marking or put it in first before all other markings if it's last in the list.
* Changelog
Adds changelog.
* Buttons Only for >1 Marking
Only renders the layer-swap buttons when there is more than one body marking.
* Changes Button Labels to Proper Up/Down Arrows
Thanks Atermonera!
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