Edit mode on notehead should be indicated more clearly
Edit mode of a note should be indicated more clearly. I suggest either a box around the note or little arrows at the head or whatever. So when you double click the head of a note arrows could appear at the note showing that you can use the cursor keys to move the note.
When I first accidentically double clicked on a note I thought musescore behaved somehow weirdly afterwards. Clicking on a different note did not highlight that note. Now I learned that I entered Edit mode by chance.