Floor+Wall
This command creates a new UCS with 2 clicks at the intersection of the two extracted planes: one on the floor and the other on the wall.
Requirements
No selection is required to launch the command.
- Click the first point on the floor using Define points: A local plane is extracted on the floor. 
- Click the second point on a wall: a second plane is extracted on the wall. 
Notes
- The Z-axis of the created UCS corresponds to the WCS Z-axis. 
- The X-axis will now be aligned at the intersection between the floor and wall planes.