Are you suggesting that the GM should be able to change the titles of the IC/OOC/Character tabs?

It's a cute idea but it would be confusing unless changing "OOC" to "World Meeting" renamed it to "World Meeting (OOC)". I think the tabs for a Roleplay should always be [IC, OOC, Chars] in that order so there's consistency. 

Genkai points out that I've contemplated the idea of custom tabs for Roleplays (on top of the three required tabs), but that's about as far as I've taken the idea. I'm reluctant to complicate what's otherwise a pretty simple/obvious system. Nobody has really pitched me on an implementation, anyways.