I'm new to BetterTouchTool (BTT), using version 3.581 on MacOS Big Sur (11.6) with an Apple Magic Mouse 2 (A1657).
I've configured BTT with three gestures:
- swipe left
- swipe right
I've configured "HUD Overlay" for each one of the three gestures.
When I swipe left or swipe right, I see the overlay.
When I middle-click, I see the following middle-click effects:
- in Firefox 92.0: open a hyperlink in a new tab; close a tab by clicking on it.
- IntelliJ IDEA 2021.2.2 (Ultimate Edition): close an Editor tab by clicking on it.
However, the middle-click behavior is incomplete:
- I don't see the overlay when I middle-click.
- in IDEA, middle-clicking a Java element in an Editor's content-pane doesn't navigate to the element's declaration or usages.
The lack of middle-click functionality in IDEA disappoints me most. I'd purchased BTT in hope of obtaining that functionality.
For what it's worth, when I use a wheel mouse that allows middle-clicking via the wheel, IDEA enacts the middle-click behaviors that I expect (and for which IDEA was configured, by default).