Home » Tip of The Day » Move And Copy Layer MasksMove And Copy Layer Masks November 16, 2015. Posted in: Tip Of The Day. To move a Layer Mask from one layer to another, click-and-drag the mask to another layer. To copy a layer mask to another layer, press-and-hold Alt (Mac: Option), then click-and-drag it to any other layer. « Previous Photoshop Tip: | Next Photoshop Tip: » Sign-up for the PTC Newsletter so that you'll never miss a tutorial!. Your Email Address: