Quick simple questions, had a search but couln't find the answer.

I've got 2 discrete GPUs and onboard graphics. When I mine I run the 2 discretes and use the onboard for desktop management.

So, once I start up CGminer I immediately press "G" gpu management, then "D" disable thread, then I choose "2" for the onboard graphics.

How can I write this into a script to use in my startup .BAT file so I don't have to manually do it each time?