You can use the predefined action "Logitech: Change Smart Shift Settings / Ratchet Mode" (to toggle use the "cycle through multiple actions" meta action.
The gesture stuff can be replicated with BTT's drawing gestures, I can post an example preset later! (Personally I'm showing a floating menu (similar to this) when hitting the gesture button, that also works really well. I can also post an example for such a menu later)
The mouse buttons are all available in advanced trigger conditions via the currently_pressed_mouse_buttons variable