[cvsnt] mixed releases sandbox

[assaf]

hi,
can alias be used to create mixed versions sandboxes ?
can the alias be used to control from which tag to update files/folders ?
my goal is to have a sandbox like this:

-root of sandbox -
                           |
                           - feature X (from tag 1)
                           - feature Y (from tag 2)
                           - feature Z (from tag 3)

without manualy 'update -r' each folder.

thanks,
Assaf