I am using osCMax v2.0 RC3
I want to know if there is a way to change every customers customer group all at the same time.

Say you have 2000 retail customers & now I want to change them all to the wholesale group from the retail group all at one time.
Currently as far as I can see, you can only change them manually one at a time..

Also how can you make it when a customer signs up for a new account that they automatically are put in to the wholesale group instead of the retail group ?

Thanks in advance