I'll look into those programs, there seems to be no way to add any commands to the remote. I found that pressing Guide on my Harmony, once I set it up as a device, toggles between Big Screen, Theater View, and Standard View. Happy accident I guess.
Other buttons are weird. In a list of Artists, pressing 1 takes you to the top, pressing WXYZ/9 takes you to the first W Artists, and GHI/4 takes you to the Gs, but none of the other number/letter buttons work.