Library /sys$common/syshlp/edthelp.hlb DEFINE, MACRO  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 The DEFINE MACRO (abbreviated DEF M) command defines a line mode macro
 command.

 Format: DEFINE MACRO name

 The name is the name of the text buffer in which the macro is stored.
 The macro itself is a series of EDT line mode commands.  You invoke the
 macro by giving its name in response to the line mode prompt.