Thruster commander can control T200 and 2 speeds

Hi Patrick
i have a T200 connected with Arduino or in second case with a servo control, the problem is i want two speed max and med. controlled with a two switches, the truster shake before start or spin slowly without close the circuit! after works good but i think that something are wrong ? i read about a trust controller , the trust controller can do this function ? dual speed controlled with switch?
thanks antonio