To Create a Section Object on a Preset Orthographic Plane

Create section objects that are aligned to a specified orthographic orientation of the current UCS

You can align section objects to a specified orthographic orientation of the current UCS, such as front, back, bottom, top, left, or right.

1. Click Home tabSection panelSection Plane. Find
2. At the Command prompt, enter o (Orthographic).
3. Select an alignment option.

The new section object intersects the center point of the 3D extents of all 3D objects in the drawing. It is placed on the selected orthographic plane. Live sectioning is turned on.