More actions for Foot controller

Would it be possible to add another key action for bluetooth foot controllers?
I would love to see a key action added to select the previous song in a setlist.

I use Lyricpad on stage but also while rehearsing and in the latter case it would be nice to move back and forth through the setlist.

Thanks for your quick reply.
Do you have any indication when Lyric Pad 3 will be available?