Being able to rebind the "back" hotkey from backspace is great, and I can just AHK it as I have been to work around..

I'm not sure if this is fixable or a minecraft control issue perhaps fixed by another mod (InvCloseFix, MC-577, MouseKeyInventoryFix, MC-91315, etc... idk if these are relevant to bqm gui)

but binding back to a mouse button (L/R/M/4/5) doesn't work; even if the default click actions are unbound.