Named Group of tiles (Applications) in Windows 8? [duplicate]

Yes it is (for groups at least), see here:

http://blogs.msdn.com/b/zxue/archive/2012/03/07/win8-howto-10-customize-metro-ui-app-tiles-and-groups.aspx

It looks to be as simple as clicking and dragging, either from a group to another, or to create a group from a group to a new area / empty space.

You can also re-order groups by zooming out (e.g. hold Ctrl and scrolling the mouse wheel, then clicking and dragging it about.

Naming a group is done by zooming out then right clicking, or swiping downwards to get a dialog box to name it.

You can also pin folders to the start screen, as per here http://www.howtogeek.com/107451/how-to-pin-apps-or-folders-to-the-metro-start-screen-in-windows-8/

but that will only open it in explorer.