Element.GetParameterValueByName Pipe Bug?

The Element.GetParameterValueByName node does not return the correct value with “reference level” and a pipe, a sheath a cable path.
The MEP elements are in a linked file. The node works with the accessories.

hi @Alain_Hamel this parameter is Read only :

Thank you for your reply.
I’m on REVIT 2016, I installed Revit Lookup, but I can not find the window Snoop parameters.
There are several versions?

Question: Will this solution only work on the current model, or will it be definitive in REVIT?

select model element, then snoop current Selection and go in parameter sets

i think you should have family with the accurate name and then change the element family type.

OK, thanks