I think you've missed the point of that completely. It's for use in aliases to check whether they were called from the Command Box, (notice that the command box is not
;Here's an alias that uses $cmdbox
if ($cmdbox) echo -a This is a special echo that only works from the command box. $1-
Now try that alias in the regular editbox and nothing happens. But use it from the actual
command box and it'll work (Use Alt+Q to toggle the command box on/off).