Adding notes to a tied chord
Many syncopations in music result in notes being tied over to the next measure. When inputting notes from the virtual piano keyboard, holding shift and clicking another note adds the not to the current chord. However, with tied notes, it only adds the note to the second chord. It would be nice if it would add it to both.
Actually, this is a problem with all methods of note input. For instance, in a recurring passage in a song I am working on right now, each measure ends with an eighth note tied to a dotted quarter note, which is the same as a half note. Selecting the half note and clicking works for the first note of the chord, but for the second and third, it just replaces what was there already instead of adding to the chord like it would if there was no tie. I cannot see how this would be what you want.
If the above problem were fixed, fixing it for the virtual keyboard would be trivial - just make the default behavior for tied chords be to select the first tied note instead of the second one. Then if you want to add notes to it, just shift-click as usual. If instead, you want to add notes to only the second tied chord, you can just hit the right arrow key once. The note editing cursor should be after both tied notes as usual, so just clicking without holding shift should add notes there.