So I'm not sure where I should ask this, but I've noticed a lot of threads have several tabs.  Namely IC, OOC, and Character Sheets.
How do these work?  Is it at all possible to customize them?  I didn't really want to make a trash post just to test.

The RP I'm looking around to move is large enough that we use a sub-plot campaign structure, where characters break of in groups of 3-6 and work through small campaign arcs run by sub-GM volunteers.  In the current forum we're in the biggest reason we haven't moved is that we've got a dedicated subforum folder due to the multitude of thread we create getting lost or clogged in the standard RP section.

If it was possible to make custom tabs we could just have a master thread for each sub-plot set with each tab listing one of the subplots.