Comment 5 for bug 1617718

I did a few internet searches to try to find out more info. On a forum one user reports (May 2012) that tap at the bottom right corner = Right click and tap at the top right corner = Middle click (this will be for a particular type of touchpad). But of course we can't document what works for one particular user! I think we need Canonical to confirm what taps do what for which types of touchpad (and that will be for how it works in Ubuntu 17.04, since we're not going to change the desktop help for 16.10 and earlier).