VMS Help DECnet-Plus, DCL Commands, SET, HOST, /X29, Qualifiers, /DEFAULT_ESCAPE_CHARACTER=character  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /NODEFAULT_ESCAPE_CHARACTER

    (Default=/DEFAULT_ESCAPE_CHARACTER=P)

    This qualifier changes the control character you type to go  into
    PAD command mode.

    Use this qualifier when accessing a PAD from a  console  terminal
    (or  on some other networking product) which interprets <CTRL/P>.
    Do not enter <CTRL/P> from a console terminal unless you have set
    the  terminal to LOCAL DISABLE with the keyswitch.  The keyswitch
    is on the front of the system that you are using.

    If you  specify  /NODEFAULT_ESCAPE_CHARACTER,  you  go  into  PAD
    command  mode by typing multiple <CTRL/Y>s ( or the host must set
    parameter 1 to a value greater than 1 ).