Phasing with toposurface

[rgranja508683]

I have two toposurface, one was created using a graded region from the other one. I change some points in the graded region and now I need to represent the demolished part of the toposurface in a section. When I try to do so with the phase filter the two surface appear merged.
Can I do that with Revit?

Regards,
Ricardo

[beegee]

Create the new graded surface in the current phase and the original topo surface in the previous phase and demolished in the current phase.

[rgranja508683]

My problem is when I need to see the combination of the two (demolished and the new graded). I see the demolished(yellow) merged with graded(brown). I want to see the only the part that was been demolished in yellow a the rest of the graded region in brown.

Regards,
Ricardo