I put this on my plugin idea pile (more like a skill that allows gear swaps while using up a round), but it would probably take quite a while for me to get around to that. Your players can quickly restart the game by pressing F5, if that helps.
I don’t think (un)equipping skills is a vanilla feature. Which plugin are you using for that?
You likely won’t find a compatible solution by any other developer then.
Their obfuscation hides the API of their original features, which means nobody else can interface with them with reasonable effort. Your best chance is to ask VisuStella about adding this feature directly or as another plugin.
(This is also why I don’t guarantee compatibility with them for any of my plugins.)
