I find that the drag and drop method for adding fingering is very cumbersome. I have seen workarounds mentioned, e.g. adding fingering to several selected notes at once, but I do not think this is an ideal solution, it still relies on using the mouse.
I frequently work with different fingerings for the pieces i play on the piano, and I was hoping that it would be possible to have a keyboard-only "fingering mode" in musescore.
select a note, add fingering by pressing 1-5, select next/adjacent notes by using arrow keys. Shift+arrow keys could change the position of the fingering symbol.
This way, it would be possible to work sequentially through the piece as you play it and explore and work out the different fingerings.
(In addition, if there could be added varitations of fingerings that could be shown/hidden it would be great. That could actually be a feature request of its own - to be able to have two copies of e.g. a bar, but only show one at a time as a variation - that could include slight differences in notes, accidentals etc as well as fingering)