Is there a way to change 3 finger drag to 4 finger drag Is there a way of using third party software like Better Touch Tool to configure a 4 finger dragging gesture?

I want to reserve 3 finger gestures for many other actions.
In Better Touch Tool, I find these four-finger gestures... No four-finger drag, I guess.  



But to be sure you could try asking at http://blog.boastr.net/what-is-bettertouchtool/