In previous versions of PS you used to be able to press CMD (i'm mac based) and drag the mouse to select all the layers that are within the area you drag to.
This is great for sorting out files, grouping layers etc as you can lock/hide layers as you go.
Problem now is that in Photoshop CC it also selects locked and invisible layers - which didn't use to happen so actually its completely ruined this method.
Any way to change this back??
It is a bug. It has been filed. It will be fixed.
In my experience it will not select locked or hidden layers UNLESS those layers are in a Group AND the group is locked.