Welcome to the forum.
How isn't it cheating?
Expect a call from the department of Ends & Means.
If you are sure you want to try your hand at hacking the system,
you would do well to keep the original intact, and try your prestidigitation on a COPY.
Have you tried using the TIME command, and reading the commandline prompts, you might learn something.
Hell, I'm reasonably adept with some of this stuff, and I learned something!
Do you know how to use F2 to expand your commandline history window?
Understand that if you fail, the added time spent trying to subvert the
system would be added to the clock (which is one reason why you don't want to work on the original).
It's a pity you don't know a little more about the half dozen Autocad SYSTEM VARIABLES which are prefixed by TD.