Can you design the screens so that it is not necessary to scroll down constantly?
There is plenty of room and very few buttons, they dont need to be listed way down below the bottom.
Also, the menu choices at the top do not work to move you to a different screen unless you hit done.
Anything that the done button does can be triggered by moving to a different screen.
A ruler would be nice on the grid. A changeable grid spacing would even be better.