Quick Create button

Hi all,

I want to use the Quick Create form for some Child entities. So in case the Plus sign on the Subgrid is pushed the Quick Create form will open instead of a new window.

The only thing i dont want is that this particular entity is popping up at the Quick Create menu as well... Is there any way i can remove this entity from the quick create menu? I can't access this via the SiteMapEditor tool or via the RibbonworkBench..

Any ideas?

Thanks!