Sylphan

Is it possible to put the 'spellbook' icon from the cast spell window (the one with 8 spell gems) into other windows? In an XML way I mean, not just click-hold and put it in a hotkey. It doesn't seem to be.

I use an interface that doesn't use the cast spell window. I just put all the spell gems in hotkey slots. That works fine for the new spell menus since the actual spell gems are put there. But the spell favorites menu doesn't work from a hotkey, only from the original spellbook button.