I while back I posted this: Connecting Pipes via Fittings
I have managed to create cross-connections for both Pipes and Ducts. however, this doesn’t work for cable trays for some reason.
The method I’m using to connect the systems up is in the thread linked, My experience with python is limited however I couldn’t see why this would work for Pipes and ducts but not cable trays.
This is the link to the API that the current method uses: http://www.revitapidocs.com/2017.1/f8175e3f-31d3-7342-054c-4911a239531d.htm
Any help would be appreciated