I’ve come to use this nifty little keyboard shortcut combination for Reverse Layers within Adobe Photoshop CS or greater. And, it’s a safe key-combination to use from the default set.
- Open up your Keyboard Shortcuts Panel.
- Navigate to the Layer menu.
- Further down to the Arrange submenu
- Further-still down to the Reverse option
- Bind the key-combination (MAC:) COMMAND+SHIFT+r (PC:) CTRL+SHIFT+r to this option
Now select a group of layers in your layers palette. Hit your new keyboard shortcut, and voila! Layers reversed.