In this case, [Engineer Bo] was tired of endless and imprecise scrolling with a mouse wheel. No off-the-shelf solutions were found, and other DIY projects either just used hacked mice scroll ...

A mouse with a rubber or plastic wheel. When the wheel is moved on the scroll mouse, the content in the active application window scrolls up or down. Introduced in the mid-1990s, the scroll mouse ...

If you only use the mouse wheel for scrolling, you're missing out ... you can middle-click its taskbar icon to open a second window. You can also use the middle-click button to close open windows.

These icons will appear automatically when there are too many tabs in the tab list. You can also use the mouse wheel to scroll tabs and then you can access a tab, re-arrange a tab, etc.