Initially, when the working plane position has not yet been changed, the only position saved in the Working Planes palette is that of the ground plane location. Once the position of the working plane has been changed, there are two ways to access existing working plane positions.
The working plane position can be permanently saved with the drawing and accessed later from the Working Planes palette. Once named, the plane position is no longer included in the list of the working planes accessed by the left and right arrows on the Working Planes palette.