Universe MitB custom championship?

It's my first time playing My Universe mode and I run two separate shows. My second show, TNA IMPACT!, has its own title that I downloaded from Community Creations. While setting up championships and divisions, I'm trying to set the TNA Championship for Money in the Bank. But I'm not seeing any options for custom championships. I've seen that you can set it in the settings under Championships outside of My Universe, but nothing for this mode. Is it possible and am I missing something? I've tried googling and searching this sub but couldn't find any answers. Thank you in advance