Sorting types of CD's

I have a question about sorting CD's with OrangeCD.

Currently I sort the albums to display official CD's first, ordered by release date, and then bootlegs at the end.

What I'd like to do is sort out "Collectors' Club" pieces separately as well, because some of these groups that do Club CD's (Marillion and King Crimson, mostly) have more club CD's than they have actual official studio discs.

What is a good way to designate these CD's as "Club" CD's and sort them out and display them after the official studio discs?

Thanks

Why not add additional fields to OrangeCD to include BOOTLEGS, COLLECTORS CLUB CD

I have done this to include DCC Tapes and Open Reel and it works fine just so long as you remember to put in the correct format