Harmony 900 for XBMC- programed but need help on one button

I have programmed my harmony 900 remote and almost everything is working great to scroll through and play movies on XBMC.

One issue though...

I can't go back one level when scrolling through the different levels within the menus. I have programed the channel return button with BACK (did nothing)and with ESC (takes me all the way back to the main menu screen). What should I use to allow me to go back just one level within the menus?

Solved.

To go back one level within the menus program a button as BACKSPACE