RFE: Please support tap-and-drag for right and middle buttons
Submitted by Anders Kaseorg
Assigned to Wayland bug list
With the synaptics driver, I could do a two finger tap followed by one finger down and move to achieve a right button drag, and a three finger tap followed by one finger down and move to achieve a middle button drag. libinput should support this too. (I use it all the time to resize windows with Alt+middle drag.)
[edit for better summary]
Middle drag is e.g. supported by GNOME Shell and Unity. Using Alt/Super + middle drag resizes the window.
Possible alternative to the tap-and-drag for middle buttons is "to use a 2fg tap followed by a 2fg move, or three fingers in the case of middle click".