I would truly bet that neither is possible...yet.

This is all so new with the recent cleanup via Senate Bill 113.  Lacerte's alerts from 2/23 say that they are waiting on FTB to finalize the forms regarding reordering the credits not to be subject to CA TMT, etc.

I would advise your clients to just take the refunds (via check if you aren't seeing a method for direct deposit).

They should have the check in time to turn back around as a payment by June 15th for the 2022 election payment.  The FTB isn't as backed up as IRS is.