How do I move video clip clip up or down after setting letterbox, i used to be able to do this until i upgraded to 10.0.6

I used to be able to manually move my video clip up and down in the event the browser using one of the settings. It was a vertical settings that i would use to pull a video clip down after i applied a letterbox to the clip, so I could see the top of the the video clip that got blocked out by the letterbox. Still looking no luck....I used to be able to do this just upgraded to FCPX 10.0.6 now i dont have the setting..