1. Select one or more checked-in workspace objects (modified or unmodified).
2. Select File > Lock.
The object becomes read-only and is marked as such by a icon in the General status column of the workspace object table.
If a workspace object you are trying to lock has been modified in a CAD application design session, but not yet saved to the workspace, you receive a warning about the in-session modification and the object is not locked in the session.