About importing a door into a room?

How do I import a door I already made and is ready to add to my room?

I did append but then it does not let me edit it to move it around.

How do I do for it to be put where I want it too?

Like not move around but stay right there.

Sorry for so many questions.

I do have the room and all I am doing now is add the window and the door but it is the begining only.

Any tutorial I could watch?

i guess what you are searching for is APPEND instead of linking to other .blend files.
read this: