If you want to change any parameter or just get its current value you need to follow the same syntax:

displaxservice -a IP_ADRESS --PARAMETER

• IP_ADRESS : is the IP address of the computer the device you want to control is connected. For localhost device connection you should use “127.0.0.1”
• PARAMETER: is the parameter or option you want to change or get its current value

Here you can see how to get the list of parameters for a specific device.