I've tried all these excellent suggestions. Thanks so much!
Gonzalo, your suggestion is working fine. Since there's not necessarily one right answer, I can use the feedback option to show a "suggested rewrite." It will be helpful some of the time.
I wanted editable text for two reasons--people edit this way in real life, and two, it saves precious screen space. Inputting the text using the variable works, but when I preview it, the text is all highlighted and when I try to edit it, the whole thing deletes. It seems to select all by default.