How to use the Portal Map Editor
1. When you are on the menu, choose New game and klick the first
2. Now you will start in a big map, shoot at the panel to make
walls, shoot at them again to change material.
3. Shoot at the X to delete, shoot at the little yellow piece to
spawn things like turrents, cubes. If you want to move them use the
4. If you want to start the map press F12 if you want to edit it
press F12 again.
Press G for Gravity gun
Press G again if you want the normal pistol.