Trackpad gesture to switch to header/source

Question

I used to be able to use three finger scroll-up to switch between source/header. Since upgrading to Lion, I it just does a regular scroll. Is there any way to get that fea

Answer 1

This stopped working for me in MacOS Big Sur and the plist changes recommended here didn't fix it for me.

What finally fixed it for me was to go to

System Preferences > Trackpad > More Gestures

and change the setting for "Swipe between pages" to "Swipe with two or three fingers". I suspect setting it to "Swipe with three fingers" would also work.