TOPIC: Multiple CB Fields sync to one DT Register field

This may seem strange but I have a unique conditional field setup on my Community Builder form that's presenting a challenge:

CB Setup=
School Board Type: English, French, Catholic English, Catholic French
Then we have a pull-down list of school boards based on which of the above are chosen so I have 4 CB fields that will give us the name of the school board.

The challenge is in DT Register I can only choose one field for School Board in the Profile Sync (for good reason I know). I need that field in my DT Register form.

Is there any way to over-ride the limit of one field per DT Register field in this case?

It sounds like you need to make the same type of conditional setup of the fields in DT Register, so you can sync each level of those choices.