No DEV -

If you can set the 4th mouse button it should work in game. You have to hold down the 4th mouse button and then move the mouse. to yaw/rotate the object, you have to hold down the 4th button AND the additional rotate button. While it might sound annoying or over complex the system works relatively well after after a short while.

As for the door, just don't build it for now. There's no need for it anyway at that point of development.