Risk Parameter Settings

I would like to be able to set bracket orders using ticks or points rather than just dollar amount. This way when I change my size my brackets would stay the same instead of being based on dollar size alone. I.e. a $200 risk reward would be 10 points for 1 contract but only 5 points if I increase to 2 contracts. With the change the dollar amount would go from $200 risk for 1 contract to $400 risk for 2 contracts.