How to use a middle name as a first name on drivers license?

Yes, that is what I did. Although my first name is still technically part of my legal name, I have my middle, maiden, and current last name on my driver's license, my social security card, and on all of my bills as well as my insurance card. I never did anything in the court to change it from my first name, I simply started using my middle name. That was all there was to it for me.