Please add keyboard shortcuts (or at least the option to define them) for all the layer commands. When I say, "all the layer commands", I mean a keyboard shortcut to do anything you can do with the mouse in the Layers window.
Specifically:
Move Layer Up / Down,
Toggle Layer Visibility,
Select Next / Previous Layer (or some set of commands to navigate layers.)
Select Next / Previous Visible Layer could be nice too.
This thread from 2006 asked for similar features, but no thread necromancy.
Please implement these shortcuts. Having to grab the mouse to do simple layer operations feels awkward and breaks my flow.