I'm considering picking up a Magic Trackpad. The issue is, since 2011 I've used 3-fingers for all my gestures. To make a trackpad really useful, I wanted to utilize the drag functionality, but the only option is 3-finger drag. It really will be a paint to try and change my muscle memory for all my gestures (OS X and BetterTouchTool) just to use drag. Is there any way/app/hack to enable dragging with 4 fingers?