SECTIONPLANE Command
Command name: SECTIONPLANE
With the SECTIONPLANE command, you can create a section object that acts as a cutting plane through solids, surfaces, or regions. If you turn on live sectioning, moving the section object throughout the 3D model in model space reveals inner details in real-time.
LIVESECTION, SECTIONPLANEJOG, SECTIONPLANETOBLOCK and SECTIONPLANESETTINGS commands are supported.