Im trying to use Proportional Editing. I don't have a 3 button mouse. Is there a way to modify the field of influence without having a scroll wheel? I already have "emulate 3 button mouse" and "emulate num pad" turned on.
Update: Turns out, the Apple Magic Mouse that Im using does allow a scroll function if you swipe it down the middle. So I am able to get the functionality I am after. Thanks everyone for your suggestions.