VMS Help LICENSE, MODIFY, Qualifiers, /EXCLUDE  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /EXCLUDE=(node-name[,node-name,...])

    Specifies that the named node or nodes in an OpenVMS Cluster
    environment cannot access the licensed product. The excluded
    nodes cannot load (with a LICENSE LOAD or LICENSE START command)
    the license registered in the License Database. Each node-name
    argument must be a System Communications Services (SCS) node
    name or a system parameter set with the System Generation utility
    (SYSGEN). The node name might not be the same as the DECnet node
    name. If you specify more than one node name, separate them with
    commas, and enclose the list in parentheses. This qualifier is
    optional.

    To modify previously defined lists without having to retype
    all of the node names, use the /ADD or /REMOVE qualifiers with
    /EXCLUDE.

    You can control license access to nodes with /EXCLUDE and control
    user access with /RESERVE, but you cannot use these qualifiers on
    the same command line. To use both types of control with the same
    license, you must enter separate LICENSE MODIFY commands.