Please, for the love of god, add a key command or right click function to either collapse or expand all layers in the layer panel.
We work on enormous files with a complex layer arrangement. It gets frustrating when a layer containing a selected object expands itself whenever a different layer is interacted with. For the sake of organising your workspace, there really ought to be a button (in the options menu or what have you) that allows you to just collapse all layers. Obviously the opposite - expanding all layers - would be equally valuable. Muchos gracias.