I see from a previous post that this tool works with radio button fields so I am assuming it works with check boxes (single) too?

My use case is as follows:
- if the checkbox is ticked I want the user to be in group advertisers;
- if the checkbox is not ticked (empty), I want to the user in group registered.

Please could you post the code to put in the Field to Group Mapping box assuming check box name is cb_profiletype.

Many thanks in anticipation.

Success. Got it working after following another thread with the following:

cb_profiletype;Yes;Advertisers;True

Interestingly users who become advertisers are also registered too. I assume this is so that users can switch on/off their usergroups?