You can customize it using the website interface
but there is a restriction on the Harmony 700, in that the first three choices in the order must be the activities tied to the buttons, e.g. TV, DVD, Music.
The first activity displayed on the LCD will be #4 in your "master" list. The last three will be #1, #2 and #3 from your master list. Other than that, the website will order the LCD screen based on your choices.
e.g. If you have 7 activities, the order in your master list is 1,2,3,4,5,6,7. The LCD will display in the order 4,5,6,7,1,2,3.
In this example, 1,2,3 must be tied to the hardware buttons. And not to complicate it further, but you can order 1,2,3 any way you like. 1 does not have to be TV, it can be Movie or Music if you want.
It's not perfect, but it does follow the logic that 1,2,3 are selected with hardware buttons, and the remainder is via the softbuttons on the LCD.