Chord Symbols above staff in fixed positions and neater look

I feel as if this would really help for notating Piano - Vocal sheet music, jazz sheets, and other forms of music, as I use Musescore often for writing for jazz ensembles and for theatre vocal sheets. For example, if I wanted to notate an A13 chord over a G it would look something like A13/G with the 13 in a smaller font above the A, of an F diminished 7 chord to have the common diminished circle sign, or a sus4 chord to have the text in parentheses in a smaller font. Thank you!