-- local s = t.display_entity:getEntityFinalSurface(nil, 64, 64)
-- game.mouse:startDrag(mx, my, s, {kind=a.hotkey[i][1], id=a.hotkey[i][2], source_hotkey_slot=i}, function(drag, used) if not used then self.actor.hotkey[i] = nil self.actor.changed = true end end)