How make actions using gestures with the Anker mouse

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"?

Thank you

Found it. Magic Mouse, action: single click swipe left and swipe right.