A few ideas
- Gray out the options when dividing the note in even parts is not possible.
- Allow using it and round up or down but it always notches on the first frame of a note.
- Magnet setting uses frames instead of note divisions. Right click magnet opens a box where you just type or click up or down the number of frames you want between each notches. It always notches on the first frame of a pattern then follows along the grid you asked for. ( The more I think about it, the more I think this is the best option )
