VMS Help LICENSE, ENABLE, Description  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Use LICENSE ENABLE to reestablish disabled licenses as available
    for loading with a LICENSE LOAD command.

    Enabled licenses can combine with other licenses when loaded for
    use. Do not enable a license that has expired, and be sure that
    all include, exclude, and reservation lists are up to date.

    Use LICENSE LIST to inspect each license before you enable it.
    Use LICENSE MODIFY to change include, exclude, and reservation
    lists.

    Because errors do not occur until enabled licenses are loaded,
    consider entering LICENSE LOAD immediately to load each newly
    enabled license on each appropriate node in an OpenVMS Cluster.
    If another combinable license for the same product is already
    loaded, first unload it with LICENSE UNLOAD. Use the DCL command
    SHOW LICENSE to see which licenses are currently active on your
    system. After you unload the other license, enter LICENSE LOAD
    to load the combination of the newly enabled license and the
    previously active license.