There isn't really a "Scale" in magicsheets per se - as it is not a drafting program. You can't lay fixtures out in 2 or 3d space and have it mean anything.... From experience I would say any attempt to lay fixtures out spaced as they might be in real life adds so much negative space that by the time you zoom out to see all the fixtures it is difficult - if not impossible - to read the text and use the touch screens.
