CTRL+J
Sinsert
Inserts a space at the cursor.
Arg Sinsert (ALT+A CTRL+J)
Inserts a line break at the cursor, splitting the line.
Arg streamarg | linearg | boxarg Sinsert (ALT+A streamarg | linearg | boxarg CTRL+J)
Inserts a stream of blanks between the starting point of the selection and the cursor. The insertion is always a stream, regardless of the current selection mode.
TrueSpaces or line break inserted.
FalseInsertion would make a line too long.
The following macro inserts a stream of spaces up to the next tab stop, regardless of the current selection mode:
InsertTab := Arg Tab Sinsert
Insert, Linsert