Feature Requests

If I had added an instrument (for example, the floor tom), and then decide that I don't need to use that instrument in the beat any longer, I'd like to remove that instrument from the beat.

I generate a simple measure (see attached picture) and afterwords I try some settings of the sticking section. I tap some buttons and after deleting all ’r/l‘ there are two ‘b‘ left. I guess the ‘b‘ is the abbreviation of ‘both‘ but I can‘t delete this if I decide later to have no sticking-labeling.