How to Link Layers in Photoshop CS6
Photoshop Creative Suite 6 gives you the option of linking layers. You’ll probably find that you don’t need to link layers in most cases. Simply select multiple layers and apply your command — moving, scaling, rotating, and whatever else your heart desires.
Occasionally, however, it is a good idea to provide yourself with a failsafe. You may want to link layers so that they stay grouped as a unit until you decide otherwise. To link layers, follow these short steps:
Select the layers or layer groups in the Layers panel.
Click the Link Layers icon at the bottom of the Layers panel.
A link icon appears to the right of the layer name in the Layers panel.
To remove a link, click the Link Layers icon again.
If you find the need to quickly select all the linked layers in your Layers panel, select just one of the layers and then choose Select Linked Layers from either the Layer menu or the Layers panel menu. This technique can come in handy, for example, when working on web pages with a lot of linked layers containing buttons or labels in a navigation bar.