I have a query which gets me all groups the current user belongs to. Currently, I am able to use it as a LOV in a Select List control. From what I understand, the only "list box"-type control in Apex is List Manager and Shuttle. Can't seem to get either to work. Shuttle kind of works, but only shows one value, or values just on the left side.
Can you provide with an example how to set it up properly? Either a 2side shuttle or a list manager...