Cut all elements intersecting with a plane

Hi @Amir.Moeini.Sh

I think I have the same challenge as you have.

Did it turn out in a viable practice?

I considered going through parts.

Divide Floors in Parts - Revit - Dynamo (dynamobim.com)

filmpje planing

The Idea would be able to visualize iterations in the planning process, without having to manipulate the Revit copy, only some reference planes.