I would like to change my keyboard shortcuts for when I use a brush. currently the default setting when using a brush is to use the number 1, 5, etc to change the percentage of opacity for the brush. And then to change the Flow you use Shift+1,5 etc....I never change opacity or rarely, but always change flow when using a brush and I'd like to switch these settings so when I change flow I don't have to use the shift key. I have looked in all the obvious places and can't find where to do this. please help!