[GraemeJ]

I only support one custom group. My current design is not really set up to allow for any number of custom groups. This would add a large amount of complexity to certain parts of the application. If enough people want this, I could look into trying to add it in the future, but it would take a fair amount of time and effort.

Mike, would it be less complex to allow existing tabs (Artists, Albums, Genres, etc.) to be re-named?  I suspect many of us don't use them all for their intended purpose - I only use four of the 14 provided - and if they could simply be re-named, that would probably be enough for many people.