sadly it is not that omniscient.
Hooks and filters are there to add in these things though - this is how many of the amr-plus add-ons work.
Because other people store their data in weird and wonderful different ways if a plugin is NOT using user-meta then some specific code to deal with it tables and fields is required.
If you are pretty good with php yourself, you could take one of the add-ons as a sample and convert it for "groups".
send me a dump of the tables with representative data in them (Saves me having to setup groups myself and I'll see how 'hard' it would be to do a "groups" specific add-on.