I searched the forum, but couldn't find this:
There are 3F click, 3F force click, 3F swipes and 3F click swipes - but no 3F force click swipes.
I use the 3F gestures for window management, and I could really use a few more gestures. 3F force click swipes would be the win!
And, with my very limited knowledge about your code, I don't think it would be that complicated since all the others are already there?
2F and 4F (force) click swipes would also be great, but I found that feature request already existed.