I assumed he wanted to move it off frame and was trying to key-frame it. Though he might be having a bit of trouble with keeping track of where he is in the video.I'm kinda confused as to what you are trying to do. If you are trying to remove it from the frame then just delete it from the timeline for however long you want it to be removed. If you want it to move across the frame then you have to use the keyframes to animate it.