Redefine existing levels by plane OR by Area of definition

Hi group,
I am looking for a node that can replace the “scope” of a level by another, either given a plane of an existing level or either by a given area of definition. I have too much levels that are defines without reflexion… (picture)

Idea : I select 1 level named A, then I select severals levels from B… to Z.
I would like all the levels B … to Z to fit in the same plane (x,y) as level A. But keep their elevation of course.

Does a node that modify the “plane” of a level exist ? I could try something starting by this.

Regards !


did anyone found a way to create Planes out of levels ?