When I copy and paste bits of text containing superscript (I typed it in to start with in Manuscripts, it's not copied from somewhere else) I don't get superscript anymore. For example copying Asquared with superscript gives me A^2^ in normal script. Does that mean superscript has to be typed in fresh every time?

Also, coming out of superscript while typing seems impossible. I can't come out of superscript mode without loosing all superscript (simple 'word(something superscript), deactivate superscript, comma, another word' doesn't work. Everything stays in superscript).
I need to insert a space and a comma after the word I want to add superscript to, then go back and type the superscript.