After upgrading to the new version of Polyphone, I saw on the front page that editing banks and presets can be performed on multiple selections now. However, it seems that trying to edit preset numbers (even on bulk selection), doesn't work as it does with editing bank numbers. Best example is when selecting multiple presets at once; the 'preset up-and-down' buttons are grayed out.
Also, when trying to edit single presets, the preset will jump to the first
available preset instead of the next sequential preset and simply swapping the two (i.e., if there are 50 presets total, and I want to move preset 6 to preset 7 and 7 to 6, changing preset 6 will jump it all the way to preset 51 instead. This way, I have to shuffle things around repeatedly if I find new instruments to add to a soundfont.)
If it was intended to be this way, then please forgive my rant.
I love Polyphone and it has served me well for years!