I agree that being able to lock objects in commonspace regardless of their release level was a nice feature in 3.x.
I don't know about anyone else, but there are times when I'm finished with one aspect of a design and I want to lock those parts, but I'm not ready to release them. I just don't want them to get change inadvertently by me or anyone else.
The only way to do this is to create a new workspace, and in that workspace checkout the objects you want to lock. Then go back to your design workspace and continue to work there.
David Haigh
Phone: 925-424-3931
Fax: 925-423-7496
Lawrence Livermore National Lab
7000 East Ave, L-362
Livermore, CA 94550