TipTap with two fingers

Hi, I was wondering whether this might be possible: two-finger TipTap.
The idea would be that either one, two or three fingers remain fixed, while the tapping is done with 2, 3, or even 4 fingers. So instead of working like the current TipTap gestures with a single finger, the tapping would use multiple fingers.

That would be pretty cool and could open up a whole new set of gestures.