Use DeselectAll to deselect all lines of the current session. (See Selection.)
DeselectAll may also be entered as DeselectA[ll] or DeselA[ll].
DeselectAll may also be invoked by pressing Ctrl-\.
DeselectAll has no operands.
Note that DeselectAll deselects all lines of the current session but does not turn the selection off. That is, a selection of zero lines will still be active. To turn the selection off, the SelectOff command can be issued.
Return Codes
OK Successful.
Examples
Deselect all lines of the current session:
=> desela