This looks like a great plugin and should do exactly what I want.
In the CB Users profile I have added a multi-checkbox field with the name 'cb_groupselection' allowing the user, when registering or updating, to select one or more of Energy, Health,Transport check-boxes.
I have created Joomla user groups Energy, Health,Transport (with Registered as their parent)
The format in which they appear in phpMyAdmin is
Energy|*|Health|*|Transport
In Autogroup I have set up Field to Group mapping parameters as follows:
cb_groupselection;Health,Energy,Transport;Health,Energy,Transport;true
My expectation is that whatever combination I select in registration should automatically include the new record in the corresponding groups. However, even if I only check one check box on registration (e.g. energy) the new record is automatically included in ALL THREE groups.
Ultimately I will have a dozen or more groups to choose from but am just testing in a small, test dataset.
I'd appreciate any pointers about what I might be missing.