Use the Cut Profile tool to change the shape of elements that are cut in a view, such as roofs, floors, walls, and the layers of compound structures.
The tool is available in plan, RCP, and section views. Changes made to the profile are view-specific; that is, the element's 3D geometry and its appearance in other views does not change.
Video: Change the Cut Profile of Elements
Depending on the selected Edit option, a valid cut face or a boundary line is highlighted.
You cannot sketch a closed loop or cross the starting boundary line. However, if you are using the Boundary Between Faces option, you can sketch over other boundaries of the face.
A control arrow displays on the first line that you sketch. It points toward the portion that will remain after editing. Click the control arrow to change its direction.
When you have 2 adjoining elements and you want to edit the profile as shown below, use the Boundary Between Faces option to achieve the desired effect.