Editing Maprestriction = legal?

[Snoosnoo]

If that was possible I expect everyone would do it to make the crappy maps that spawn in the world of AC. It's not like they're stopping us from making a decent map! So, either work your way around them (probably resulting in a more appreciated map) or learn to hax and make yourself a lovely twin towers map by having a huge empty space to average out the ceiling height