Ignition switch settings

wrote

I'd rather have the toggles in my Jodel but it makes the
airplane so much easier to steal. If you can get in you can go.

You could rig up a cover to put over the toggles, with a place to put a
padlock on the cover, as long as it is not a certified plane.

Would altering a plane in that manner be against the rules for certified
planes? It would be in the certified plane's regular certified condition,
while it was being flown, after all!
--
Jim in NC