Set up Harmony Remote directly to my Favorites

I am just a newbie and I need some help regarding my harmony remote. I would like to program my harmony remote in the sense that if I press the button, it will go straight to my Xebec favorites. Can somebody please help me how to edit the xml files into it? Also, when I tried watching a movie, I pressed the numeric buttons in my harmony remote but nothing happened. I am using an ATV 2 and Xbox built on ATV 2 on July 2011.
