There are different workflows to edit a section plane. Each section plane is represented in the browser under a unique section group. Right-click on a section group has a context menu with all the edit options.
Edit - Edits the section depth using the triad.
Flip - Flips switches the direction of the section cut.
Add Plane - Adds multiple section planes to an existing section group.
Redefine Components - Manually select the components that participate in a section plane.
Clear Components - No component participates in the section plane. The section plane however is not deleted.
All Components - All components participate in the section plane.