Noob question

[Admiral Awesome]

Hello, I am a total noob and i have a question that i hope can be answered here

In the beginning of the game someone mentions that mages can eventually create their own spells but that its very rare to find a mage powerful enough to create her own spells (not an exact quote). Is this a feature in the game? Has anyone been able to create custom spells?

I searched the forum for this and could not find anything on this topic. Any help would be greatly appreciated! Thanks!