Would it be possible to have it so that you can switch back and forth between playtesting and editing?
That is exactly what stopped me before from culling the piece table; you would no longer be able to add new pieces once these have been deleted. But a solution for that occurred to me: the extra pieces are only troublesome if they have the same ID as participating ones. So on pressing Start Position I can simply set all IDs of the non-participating pieces to a dash. One can always assign a new, valid ID afterwards, if one selects the piece as an afterthought.
After pressing Start Position the Diagram is no longer in setup mode, though. This only affects automatic placement of color-reversed pieces, so perhaps this isn't a real problem. I suppose I could add a button to go back to setup mode.
That is exactly what stopped me before from culling the piece table; you would no longer be able to add new pieces once these have been deleted. But a solution for that occurred to me: the extra pieces are only troublesome if they have the same ID as participating ones. So on pressing Start Position I can simply set all IDs of the non-participating pieces to a dash. One can always assign a new, valid ID afterwards, if one selects the piece as an afterthought.
After pressing Start Position the Diagram is no longer in setup mode, though. This only affects automatic placement of color-reversed pieces, so perhaps this isn't a real problem. I suppose I could add a button to go back to setup mode.