Roman numeral option?

[raymb1]

I am used to 'abstract' the function of harmonies memorizing them as roman numbers for easy transposing.

I totally love the option to show the sheet as 'absolute' chords, relating to the key as numbers; you call it 'Number Notation' ...
The only thing is that I am back in math class when I see the symbol as 4-7 or 2-7 or 57. I would find it way easier to get this as IV-7, II-7 or V7 as this also seem to be the good practise in theory books ...

I am sure this is not a big deal to change in the code but would increase to read-ablity a lot (or is it only me?)

Thank you for considering.

IV-7 and the others work well in harmony class, In the real world and almost all chord charts it's Gm7, Em7 or A7