Well, In that case you can Google the problem and hope that someone has found a solution for it or maybe you can still find a registry hack yourself.
In any case, good luck! (y)

I googled the location of the key but since I can't confirm it, I'll leave it to you.
Here's the location:
HKEY_LOCAL_MACHINE
SOFTWARE
Synaptics
SynTPEnh
PlugInConfig
Defaults
3FingerGestures

I don't have my laptop right now but I remember finding a 3 Finger Gesture Key in registry which had many values, so maybe if we exchange those values we could both get what we want.
I will not be...

I found those registry locations:
HKEY_LOCAL_MACHINE
SOFTWARE
Synaptics
SynTPEnh
But still dont know how to edit the 3FingerGestures

I want to change the three finger action on my laptop touchpad. I have win 8.1 driver synaptics driver installed. The three finger gestures can't be changed, only enabled or disbaled. Now, the...