I am a newbie at Dorico and as soon as I could I started messing around with the symbols editor, as I’m quite excited about it. I started to make my new tonality system and started creating my own accidentals for it. It’s very powerful. Congrats for that!
The editor is impressively powerful! However, as powerful as it is, I would expect an undo/redo system, because often I encounter myself moving things out of place unintentionally or do a lot of trial and error. Is it planned for the future?