So the piece I’m working on has tons of grace notes and two things are slowing me down a lot:
When selecting a grace note and changing its note value via the number keys, the selection is cancelled afterwards so you have to reselect using the mouse after every single edit.
When the note value of a grace note that has an element such as a slur or an articulation attached to it is changed, the slur/articulation is deleted.
Also, I would love it if I could use the R (repeat) shortcut on grace notes in the same way as for normal notes, for example to quickly add another note. Strangely this shortcut, when used on a grace note, adds another note to the chord instead of repeating the note.