Chord and Fingering

I would like to place the chords at the top on a piano system because that is the convention and on the bottom staff of the accordion because that is where we place the chords for the left hand in standard bass.

It would be wise to add this option in the future I think.

Another thing, in accordion, we sometimes add a 4th or 5th row with the circle fingering.

Great but is there any way to enable it in the popover.

If not, it would also be a good idea to add this function, for example with 4+ which would mean 4 circled for the additional rows.
In addition it would be nice to integrate the left hand fingerings for the additional 1st and 2nd bass rows and to be able to do this via the popover
chord

I think this is important but I understand that the accordion may not be the priority.

Thank you for answering the 2 questions and also thank you for the help.