Home » Tip of The Day » Toggle On and Off The Shield While Using The Crop ToolToggle On and Off The Shield While Using The Crop Tool March 6, 2018. Posted in: Tip Of The Day. In Photoshop CS6 and newer, the forward slash key / toggles on and off the Shield (the shaded area outside of the crop) while using the Crop Tool. « Previous Photoshop Tip: | Next Photoshop Tip: » Sign-up for the PTC Newsletter so that you'll never miss a tutorial!. Your Email Address: