/RM=name

    Selects records only for transactions that have participants
    whose names begin with the specified value.

    The participant name is shown in the Name field in the output
    from DUMP, and is output in both ASCII and hexadecimal.

    If the participant name includes undisplayable characters, you
    can select records for that participant by using the hexadecimal
    form of its name. When specifying the hexadecimal form of
    the name, you must convert it by reversing the pairs in the
    hexadecimal number. For example, if the participant name is:

    Name (11): "SYSTEM$RED" (4445 52244D45 54535953)

    the value you specify for the /RM qualifier is:

    /RM=%X53595354454D24524544