The dos offline programming manual has some reference to QWERTY keyboard functions:
Think this is the manual here:
viewtopic.php?t=1636
When editing a CNC File using the qwerty keyboard,
the following keys are used:
{keyboard arrows} keys.
Moves the cursor up, down, left and right.
{Delete} key.
Deletes the one character highlighted by the cursor.
{Back arrow} key.
Deletes one character to the left of the cursor.
{Insert} key.
Toggles between the two settings 'insert' and
'overwrite'.
{Home} key.
Moves the cursor to the start of the current line.
{End} key.
Moves the cursor to the end of the current line.
{Page up} key.
Moves up a page.
{Page down} key.
Moves down a page.
{Ctrl-Page up} keys.
Moves to first program line.
{Ctrl-Page down} keys.
Moves to last program line.
{Ctrl-Y} keys.
Deletes all of the current line.
{Ctrl-N} keys.
Inserts a new blank line.
{Ctrl-R} keys.
Restores an edited line (only possible if you do not
move off the line).
These keys relate to marking in Anchor Mode:
{F7} key.
Sets start of marked area.
{F8} key.
Sets end of marked area.
These keys relate to marking in Drag Mode:
{F7} key.
Starts making (use {keyboard arrows} to drag out the
marked area).
{F8} key.
Stops marking. If pressed again cancels marked area.
These keys relate to program line group editing:
{Alt-D} keys.
Deletes marked area.
{Alt-M} keys.
Moves marked area to current cursor position.
{Alt-C} keys.
Copies marked area to current cursor position.