“InDesign lets you control the visibility of layers in your placed Photoshop graphics. That can be pretty handy when you find yourself designing a series of related ads that require minor changes to the same image.
In InDesign, select a placed Photoshop graphic and choose Object > Object Layer Options. This gives you a dialog box where you can toggle the eyeball next to any layer to turn it on or off.”
Link:
http://www.creativetechs.com/iq/turn_photoshop_layers_onoff_in_indesign.html
