In What Kind of Document are Analytical Sub-Categories Valid?

I’m interested in pulling local coordinate systems from my analytical nodes for column profile orientation, but I’m being told that the AnalyticalNodes_Planes category is not valid for a Revit (2015) Project document. Please advise. Thanks! notValidForDoc

This seems interesting - but check this out. Might be more of what you are looking for -

The direct way to access that info is to use the API. If you don’t like that, you’ll most likely be able to skip the API by accessing the columns’ “Cross-Section Rotation” parameter and rotating the X axis around the column’s axis by that many degrees.