And by the way, Uvah, the Shelf doesn't need to span the full screen width (even though it's set to do that by default) unless you want it to: you can always turn off the 'Span full screen width when docked' setting in the Position tab of the Shelf Properties dialog and then manually re-size and position the Shelf horizontally (it must be open for you to be able to re-size and move it, though).
This would enable you to put the Shelf and ObjectDock's tabbed dock side-by-side on the same screen edge, for instance.
Again, apologies if I'm saying something obvious, hard for me to evaluate what is obvious and what isn't. 
