I have no idea if anyone capable of adding this is around, but I'll put it out anyways.

In a nutshell; there are some roleplays (or simply systems that players use) that require more than the simple 3 tabs (IC, OOC and Char). These can include character discussion sections, separate roleplay environments to keep things cleaner, or "seasons" of roleplaying.

The idea is that the GM can add a few more tabs, if required.

A second idea that's on a much smaller scale, what about Co-Gm's being able to edit first posts of sections (possibly with a changeable permission by the GM)? The use I see for this is when the OOC needs frequent updating, but perhaps the main GM is on vacation...