)CS changes the current space to the global namespace nm.

If no nm is given, the system changes to the top level (Root) namespace. If nm is not the name of a global namespace, the system reports the error message Namespace does not exist.

name may be either a simple name or a compound name separated by '.', including one of the special names '#' (Root) or '##' (Parent).

      )CS
#
      )CS X
#.X
      )CS Y.Z
#.X.Y.Z
      )CS ##
#.X.Y
      )CS #.UTIL
#.UTIL