This mode is an extension to "Matrix-based security" that allows additional ACL matrix to be defined for each project separately (which is done on the job configuration screen.)

This allows you to say things like "Joe can access project A, B, and C but he can't see D." See the help of "Matrix-based security" for the concept of matrix-based security in general.

ACLs are additive, so the access rights granted below will be effective for all the projects.