Problems entering Nashville notation

Hello.

I'm trying to enter Nashville notation for a song. I've read the corresponding chapter in the handbook, of course (https://musescore.org/en/handbook/4/chord-symbols#nns).

Entering the numbers 1 to 7 works fine. But I'm trying to figure out how to enter raised symbols for extensions, for example 'maj7', '7' etc. Also, I'd like to be able to specify if triads are minor like '4m' if, for example I need to write a minor subdominant. The chapter in the handbook displays examples of some of this, so I'm thinking it should be possible. I'm also wondering if it's possible to specify non-diatonic chords, using 'b' or '#'

I've tried writing for instance '17' & '1maj7' for extensions and '4m', '4min', '4-' to specify a minor triad (and also 'dim', 'aug', '+' etc). When leaving edit mode (if that's the correct term) everything following the first number disappears, visually. Entereing regular chord symbols seems to work as expected.

I've tried right-clicking (everywhere), using modifier keys like CTRL, ALT etc. Also I peeked at the Nashville text style to see (if I could understand) if something could be changed there. I've perused the Properties panel. Also I've tried searching this forum, Youtube etc. But I haven't found a solution.

I'd really appreciate a helping hand!

The above on: OS: Windows 11 Version 2009 or later, Arch.: x86_64, MuseScore Studio version (64-bit): 4.4.0-242390800, revision: 0fcd11b

ps
I'm a relatively new Musescore user (and overall I really like the program!), so I apologize in advance if I've overlooked something basic!