Added ThinkPad mode, which when enabled will snap scroll motion to either vertical or horizontal, emulating how TrackPoint works.
Recommended Settings for ThinkPad users (replacing TPmiddle)
With your TrackPoint's middle button set to "middle click mode", the following configurations are recommended to emulate TPmiddle's direct scrolling:
Friction: 30
Y-Sensitivity: 90
X-Sensitivity: 90
Minimum X-Step: 10
Minimum Y-Step: 10
Flick Mode: No
ThinkPad Mode: Yes