Jazz Chords

Can anybody help me with Jazz Chords in Notion? I suspect what I'm trying to do is impossible but would be happy to be told otherwise. Can I write the chord "B♭13 ♭9" without it looking like "B♭♭913". Can't get brackets around the alterations either. There are plenty of other commonly used jazz chords which seem to be just plain wrong. I can't get CMaj9 - I can get CMaj79 but that is not the correct way to write it. I can't believe that a great piece of software as Notion has neglected chord symbols so badly while giving such comprehensive Tablature options. Who needs TAB? The guitar teacher's curse. What I do need to do is to write a big band guitar chart which seems impossible. Apart from the chords mentioned above, any chords with alterations end up being so wide that you can't have more that two bars per line. Also the alternate bass note should have the option of being written below the chord otherwise it's just confusing to read in a complex chart. Thanks for the great software but please tell me somebody's working on fixing up these issues. Or maybe I just missed a menu?