I have an older X200 which does lack a trackpad. I'm currently using a X230 which does have a trackpad, but I ended up physically disabling it (and the finger-p

I have an older X200 which does lack a trackpad. I'm currently using a X230 which does have a trackpad, but I ended up physically disabling it (and the finger-print reader) simply by unplugging them, so when the Microsoft-powered 'teaching interface' in my own class failed (well, actually lots of times, but memorably – in two different semesters – when the students were giving presentations) I had to put my own machine in service as the 'projector driver', almost of the students were flummoxed by the TrackPoint (since the TrackPad obviously won't work, being unplugged), despite being business students who (I thought) should be familiar with ThinkPad and their TrackPoints.