No it does not. Has Shift, control, alt and escape. But no default space bar. If you are using the keyboard for left and then hitting the space is normal. I dont want to be removing my hand from the 3D navigation device to use keyboard all the time. Defeats the purpose

Oh not large in actual distance. I am sorry, I was talking in detail. The model is about 500'. I just meant it was getting large in size/file size. House that has full details including all framework, drywall, carpet, tile, trim, etc. Probably pretty typical or actually conservative for most of you here.