Support or load a node with Teddy in a model loaded from Revit

Hello everyone,

I have a model generated from Revit.
I want to fix a certain node in my model and load a certain group through Teddy.

For instance, load node 1023 and load the length between 1011 and 1012.

I have tried the following, but whenever I run the script, it delete my model loaded from Revit.



Syst Rest

to keep ypur existing system (Syst Spac generates a new 3d system)