Customization instructions

Connect to the lowest directory in the path that is already
customized.  One way to check whether a directory is customized is to
use the vwp command while connected to the directory.  If one of the
components in the physical name for the directory includes the the
name of your virtual system it is probably a customized view.  Let
'thisdir' be the name of the current directory and 'subdir' the name
of the subdirectory that is to be customized.  Do a vls -u to find out
the name of the union link for the uncustomized version of the current
directory.  The subdirectory to be customized should not show up in
this list*.  For the purpose of this example, pretend that the union
linked directory is named 'usprot'.  Execute the following commands:

vmkdir subdir
vcd -u usprot
vln -u subdir ../thisdir/subdir/usprot

That should do it.  Do a vcd ../thisdir/subdir followed by a vls -u
and a vls to make sure things worked.  You can now use vln to add
links to your customized copy of the current directory.  Use vln's
"-c" (customize) option to make sure that vln does not think that the
uncustomized target of the link is the directory in which the new link
is to be added.

If you are trying to customize a directory deep in the hierarchy, each
directory in the path from the root must be customized though it is
expected that those in the higher levels of the hierarchy might have
already been taken care of (when you customized other directories
sharing a common prefix).

* : The subdirectory to be customized would be in the union
    linked directory, if you see the subdirectory in the current directory
    when you do the vls -u, then a different procedure must be followed.