Simple Equation Problem in Sheet Metal

Hello all,

  Please pardon my newbieness but I have a question that I am pretty sure will be easy for you guys to help me with. I have a simple model here that I would like to be equation driven. In the Base Flange Sketch, I would like the Stock Thickness to be updated in the sheet metal parameters as I change the thickness on the sketch.

  Is that doable?

        Thanks,

             Marc

SolidworksSheet Metal