From what I observe, you simply have to move the "Margin" slider to the max (10) and you can also increase your "Stop" slider to the max (1000). (Keep the "Mode" slider to 1). This will give you (in test mode) a profit of $1251 instead of the default $818.
I would recommend you make sure to read the Zorro manual on the Z4 system first + trade in demo before going live.