Accordion chord notation

Is there a simple way to notate accordion chords? Is is a sort of very simplified figured bass notation written on top of the notes.
These are the symbols: M for Major chord, m for minor chord, 7 for a dominant seventh chord and d for a diminished.


Dorico doesn’t have any special feature for this, I’m afraid. I wonder whether using lyrics above the staff would be an appropriate way to get the results you’re after? You can use Shift+up arrow in the lyrics popover to specify that the lyrics should go above the staff.

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Yes, it works nicely! I thought that but couldn’t remember how to get to it.