The Snap UCS to Bottom View Tool rotates the UCS plan the bottom position.

 

Using the Snap UCS to Bottom View Tool:

 

Using the Snap UCS to Bottom View Tool:

Find the Snap UCS to Bottom View Tool icon on the UCS Draw Plane Toolbar (color coded purple) and Click on the tool. The UCS aligns with bottom plane. The drawing screen will refresh and will show the changed UCS.

 

Note: This tool will not remain activated. It is a one click tool and when finished it will activate selection tool.

 

Also See:

UCS Draw Plane Toolbar