How to filter elements with a host wall from linked model?

Revit
,
1

Hello,

I wanted to filter electrical fixtures which are hosted on fire rating walls. And the walls are from a linked model. I am attaching a graph that only generate the linked model as a host of the fixtures. Can anyone have an idea to generate the walls in the linked model? Thank you so much.

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2

if you share your graph we can correct it where needed.

3

Hi Vijay, I just uploaded the graph I have for now. The problem I have is I can’t find a node to generate the electrical fixtures’ hosts which is in a linked model.