like the under image, if the battery box is empty, when i add a new selector cover then the number will set ‘0’ and the original cover still display as ‘1’ (it really is 0 beacause the electric current is unlimited). But if it has battery inside, the number will keep ‘1’.
Btw, what about add ‘shift to add cover’ in config? it is so easy to add cover carelessly:confounded:.
