"While in combat with at least one training dummy, the Show Housing Panel keybind (default F5) now changes to Reset Training Dummies, which allows you to easily reset all training dummies you are in combat with."
This would be better done outside of combat, rather inside it. If you maintain inside combat, anyone could come into combat with the dummy then reset it, messing up the parse. Whereas, if you put this as outside combat, a player can reset the dummy without having to completely kill the dummy to do so. I recommend making it a targetable option, meaning while outside combat, you target the dummy in question that isn't in combat, and an option appears to reset it. Good idea though ZOS.