- U
Reverses the most recent
operation.
- UCS
Manages user coordinate
systems.
- UCSICON
Controls the visibility
and placement of the UCS icon.
- UCSMAN
Manages defined user
coordinate systems.
- ULAYERS
Controls the display
of layers in a DWF, DWFx, PDF, or DGN underlay.
- UNDO
Reverses the effect
of commands.
- UNION
Combines
selected regions by addition.
- UNISOLATEOBJECTS
Displays previously
hidden objects.
- UNITS
Controls coordinate
and angle display formats and precision.
- UPDATEFIELD
Manually updates fields in selected objects
in the drawing
- UPDATETHUMBSNOW
Manually updates thumbnail
previews in the Sheet Set Manager and the Quick View tool.