The pages on this site contain documentation for very old MS-DOS software,
purely for historical purposes.
If you're looking for up-to-date documentation, particularly for programming,
you should not rely on the information found here, as it will be woefully
out of date.
dExtend
Extend
To lengthen a selection, using F8 or Shift and
a key or command that selects text. You can also
extend a selection by holding down a mouse
button while moving the mouse pointer across or
up and down the text. See also: Drag; Select.