I have an XPS13 Signature edition running Windows 8.1. A significant setting/feature that seems to be missing is a way to issue a "middle click" using the trackpad. One impacted application is VNC. I use left-button to copy and middle-button to paste. Even after setting the VNC client to "emulate 3-button mouse" (typically via clicking both left and right button at the same time), I do not get the same effect of a middle button.
Does anyone have any suggestions? Even old, tired Latitude 8XXX series touchpad + buttons allowed me to do this.