I'm on MacBook Pro with OS 10.14.6 with the latest Better Touch tool.
I'm trying to control buttons on the Anker vertical ergonomic mouse.
I ran accross this recommendation to do page back and forward:
3F Swipe Left (Page Back) and 3F Swipe Right (Page Forward) thats under "Predefined Actions" -> "Mimicking standard gestures"
Where is "Predefined Actions"?