Wed Dec 18, 2013 2:33 am
You should be able to walk through doors (and windows) but not through walls.
But if you turn 'Fly' mode on (F key is the shortcut) you will be able to walk (fly) through anything in any direction.
Press ESC to bring up the menu and you will see the keyboard shortcuts in there in the 'Controls' tab.
Versions 6.5 to 21
Dell XPS- i7-6700 @ 3.4Ghz, 16GB ram, GeForce GTX 960 (2GB), Windows 10
Dell Precision 3510 - i7 6820HQ @ 2.70GHz, 16GB RAM, AMD FirePro W5130M, Windows 7 64bit