Building data group as item type

Hi

I read this thread and are trying to do the same, create at pile-schedule:

https://communities.bentley.com/products/building/building_analysis___design/f/aecosim-speedikon-forum/162985/aecosim-pile-schedule

I try to follow the video posted as a reply, but the problem is that I can't see the building data group when I'm about to add it as an item type. Why is that? 

Robert