I studied this patent (pending) and it seems obvious to me that prior art apply on:
Application number US 14/172,685
(PCT) Pub. No.: WO/2014/122535 International Application No.: PCT/IB2014/000684 Publication Date: 14.08.2014 International Filing Date: 04.02.2014
I'm very knowledgeable in User interface paradigms, I'm coauthor of several patents in UI/UX, and I see no innovation here.
This patent is about user interface: grouping, docking and transforming windows (move, rotate, scale) together by layering system.
I know at least some prior art that I would like to see confirmed and submitted to Examiner before this becomes an issued Patent:
Publication in 1995: Directness and Liveness in the Morphic User Interface Construction Environment John H. Maloney Randall B. Smith Apple Computer, Inc
This paper explain morphic UI, and way to organize and transform user interface in a hierarchical manner, exactly as "layering" does in the patent. Those techniques have been implemented with graphical objects and windows in the software Smalltalk Squeak before 2009. http://www.squeak.org/ Books, documentation and videos exist on Squeak for many years.
In 2000, from the same author: An Introduction to Morphic: The Squeak User Interface Framework John Maloney Walt Disney Imagineering
Other prior art may be found, but this one should be sufficient to oppose to the main claims. Zooming and unzooming layers/Windows is so well known in CAD and UI systems that it cannot justify innovation even by juxtaposition.
Let me know if you think this pertinent.