Is there a way to create a new tab in the editor? For example, two of the base classes in Complete Psionics use mantles, which are similar to Cleric Domains. However, if I make a new Cleric Domain, it adds it to the list of domains for clerics. Is there a way to make a Psionic Mantle tab that would do the same thing as the Cleric Domain but for psionic classes?