Before Gnome3, Ubuntu emulated middle click with 3 fingers tap on the touchpad. After Gnome3, it was used to drag windows (and maximize/restore). I missed the very useful middle click gesture, but at ...
When viewing large PDFs with small print where one has to zoom in to be able to read even on fullscreen, it would be nice to be able to move the 'paper' with the drag of the mouse (hand cursor type). ...