The following initialization TECO macro always disallows automatic
  file creation (256) and, for scope terminals only (512 in ET),
  enables scope editing scroll mode (128) in SEEALL mode (16) with
  immediate mode command output turned off (-1EV).

   256U0 ET&512"N Q0#128#16U0 -1EV ' Q0#4096

  This initialization TECO macro would be defined as the equivalence
  string to the logical TEC$INIT as follows.

   $ DEFINE TEC$INIT "256U0 ET&512""N Q0#128#16U0 -1EV ' Q0#4096"