imagineer

Thanks Aammppaa
The release in the Layer Studio does exactly what I wanted. I agree, I'd prefer a keyboard shortcut for this, like in FH.
 
As for layered selection - I was trying to do layered DE-selection, with the Shift key depressed the whole time.
This simply does not work in AD. Often the quickest way I select a large quantity of elements is to do a drag select, then shift deselect what I don't need.
This is my problem in AD.(and yes, of course I use layers to aid in path management - though in AD having 1000 layers makes this all but useless - it's FAR easier to identify individual paths on the drawing itself rather than in the layers studio.)
 
Duplicate 3 identical circles over top of each other, select them all. Now try shift-deselecting them. I can't do it with any keyboard shortcuts listed so far.
The reason I think this important is because for the complex artwork I routinely do, this is a 'bread and butter' capacity I absolutely need and use continually.
Anyway, thanks for the 'release' heads up - that's one problem resolved!