Thanks, Baker. Since this didn’t seem like an easy answer, I decided to call the College Board and thought I’d report back to the group. According to the supervisor I spoke with, students are allowed to work in groups of 2-3. They are also allowed to ask others in the class for help if they get stuck or want additional feedback. So, for example, one pair could ask another group of three for feedback/brainstorming/help, etc. (Obviously it is very clear that they can’t ask me for help.)
I could not get their help in identifying where in writing this is for the Create PT, and the AP Course Audit group (to whom they would have referred me) is closed until March.
I hope this helps others in the same boat as I am.