I know there's a room above this floor. How do I get there

Hint 1 of 13:

The closet/elevator will help. But there's no peg to pull.

Hint 2 of 13:

Pull a peg. Watch what happens CAREFULLY when you do.

Hint 3 of 13:

The elevator doesn't move until you let go.

Hint 4 of 13:

You can stand on top of the elevator.

Hint 5 of 13:

So, if it goes to the second floor, you'll be on the third.