Apple Game Frameworks and Technologies: Controller Reference Node (p. 182)

In the paragraph that begins “Switch to the GameScene.sks file” I am clearly doing something wrong. When I right-click on the controller node and choose Copy, all I am doing is copying the controller node name. When I right-click again, there is no Delete option (only Cut). If I choose Cut, it simply cuts the name from the node; it doesn’t delete the node. Then if I go to Controller.sks and right-click and choose Paste, it simply pastes in the controller name.
Please help. Thanks.