I am designing a form to request people to select the default payment method first, and then request for the bank account detail info. I would like to have the logic as if the person chosen Paypal as the default Payment method, then everything in the panel (red area) is an optional for this person, however, if *Bank Transfer* was ticked, then everything in the panel is required.
I tried to set the rule, but I found I can only hide or disable the panel. Does anyone know other better way do make this happen? Thanks!