Hey there,
Would be really cool if you could add "Right click" to the gesture mouse button dropdown. So one could trigger gestures similar like in "BetterTouchTool" or in "Vivaldi Browser".
The problem with right click is it is used for contextual menus so generally not appropriate, and also easy to mis-trigger depending on the gesture.
Yeah that's true, there are some complications with this that I have not thought at. Vivaldi solves this by only starting to recognising a gesture when you hold right click while move the cursor more than 50px. As if you only click once and not hold the right click when using the contextual menus, this works pretty well so that I never get any mis-triggers or problems with contextual menus.