--- freem/doc/freem.texi	2025/05/18 18:15:38	1.58
+++ freem/doc/freem.texi	2025/05/18 20:40:35	1.59
@@ -2106,6 +2106,7 @@ Identical to @ref{$TRANSLATE()}, except
 * ZASSERT::                             Raise error when a conditional expression evaluates @emph{false}.
 * ZBREAK::                              Enable/disable ZBREAK mode.
 * ZCONST::                              Define a constant that cannot be altered after initial definition.
+* ZEDIT::                               Edit a routine using an external editor.
 * ZGOTO::                               @code{GOTO} with @code{BREAK} control.
 * ZHALT::                               Exit FreeM job with return value.
 * ZINSERT::                             Insert code into routine buffer.
@@ -3449,6 +3450,37 @@ Constants must only be locals, and globa
 @code{ZCONST@emph{:postcondition} @emph{mref1}=@emph{initial-value1},...,@emph{mrefN}=@emph{initial-valueN}}
 @end example
 
+@node ZEDIT
+@section ZEDIT
+@cindex ZEDIT
+@cindex commands, ZEDIT
+@cindex commands, non-standard
+@emph{FreeM Extension}
+
+Edits a routine using an external editor. Uses environment variable @code{$EDITOR} if defined; otherwise, uses @code{vi}.
+
+@emph{Syntax}
+
+@example
+ZEDIT@emph{[:postcondition]}
+@end example
+
+In its argumentless form, edits the currently-active routine, provided the optional @emph{postcondition} is @emph{true} or omitted.
+
+@emph{Syntax}
+
+@example
+ZEDIT@emph{[:postcondition]} @emph{<routine-name>}
+@end example
+
+In its single-argument form, edits @emph{<routine-name>}, provided the optional @emph{postcondition} is @emph{true} or omitted.
+
+Routine names must not be quoted, and must not included a leading caret (@code{^}).
+
+@emph{Errors}
+
+@code{ZEDIT} will raise @code{ZNOPGM} if the routine cannot be found, or there is no routine currently loaded in argumentless form.
+
 @node ZGOTO
 @section ZGOTO
 @cindex ZGOTO
@@ -3457,7 +3489,7 @@ Constants must only be locals, and globa
 @cindex commands, non-standard
 @emph{FreeM Extension}
 
-In its argumented form, enables @code{BREAK} mode and branches unconditionally to @emph{entryref}.
+In its single-argument form, enables @code{BREAK} mode and branches unconditionally to @emph{entryref}.
 
 @emph{Syntax}
 
@@ -3465,7 +3497,7 @@ In its argumented form, enables @code{BR
 ZGOTO @emph{entryref}
 @end example
 
-In its argumented form, resumes execution after a @code{BREAK}.
+In its argumentless form, resumes execution after a @code{BREAK}.
 
 @emph{Syntax}