Library /sys$common/syshlp/nclhelp.hlb set, event_dispatcher, sink, displayuids  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Default: True          Value: Boolean

    A boolean value indicating whether to include the UIDs when
    displaying an event.

    set [node node-id] event dispatcher sink sink-name -
        displayuids boolean

    Example:

    set event dispatcher sink local_sink displayuids false