Suggestion: add one more option to (select all similar elements with more options) when selecting notes
1- Select one note in a score that has already notes and chords
2-right click -> select -> more -> selection options -> more selection options window
The suggestion here is to add a "Same Chord" filter to the options
3- from the suggested filter window tick both: "same note name" and the new suggested filter" same chord"
4- press OK and you will have the notes selected only when it appears in a range that have that chord
Now you can quickly change the enharmonic spelling of the selected notes to more convenient names per chord through out the whole score (F# with D chords instead of Gb, Bb with C7 instead of A# etc...)
this might be particularly useful when creating long sheets of exercises in 12 keys where lots of copying and transposing are going on