It’s a little thing really, but one of the things that the Touch Cover 2 and Type Cover 2 would NOT do – was a simple Left-Click-and-Drag on the Touchpad – and since the Windows 8.1 update it works! The behaviour is now as it is described in the fourth row below (Left-click and drag). Try it. You’ll like it.
The screen shot above is from the original online documentation for the Touch Cover 2 and Type Cover 2. It was subsequently amended when it was found to be incorrect. Until the recent update, you had to press and hold the left touchpad button while dragging with a different finger.
Thank you Microsoft.