Home » Tip of The Day » Delete All Hidden LayersDelete All Hidden Layers April 8, 2016. Posted in: Tip Of The Day. You can delete all hidden layers (Eye icon off), by going into the Layer panel’s flyout menu (4 line icon on the top right of Layer’s panel) and choosing “Delete Hidden Layers“. « Previous Photoshop Tip: | Next Photoshop Tip: » Sign-up for the PTC Newsletter so that you'll never miss a tutorial!. Your Email Address: