I'm left handed, I use my left index finger to manipulate the trackpoint, and my left thumb for any of the three mouse buttons. Clicking the middle button is a

I'm left handed, I use my left index finger to manipulate the trackpoint, and my left thumb for any of the three mouse buttons. Clicking the middle button is a middle click, and holding the middle button makes the trackpoint movements act as scrolling. My laptop is a T450s, running Debian and KDE Plasma. Acceleration is set to medium, and "Adaptive". The key is tuning your sensitivity/accelaration so you can make very fine/slow movements, but also move the cursor all the way across the screen with stronger/faster ones.