Note: if the mask’s Density or Feather sliders has been changed using the Properties panel, this shortcut will not work. Option + Shift -drag (Mac) | Alt + Shift -drag (Win) the layer mask thumbnail to create copy of a layer mask while simultaneously inverting the mask.Option -drag (Mac) | Alt -drag (Win) the layer mask thumbnail in the Layers panel to create a copy of the mask.Drag the layer mask thumbnail in the Layers panel to move it from one layer to another.Or, on the Properties panel, target the Layer mask and click the Trash icon at the bottom of the panel.Or, Control -click (Mac) | right -click (Win) on the layer mask to choose between Delete Layer Mask or Apply Layer Mask from the context sensitive menu. Target the mask on the Layers panel and click the Trash icon to delete a layer mask.Command + I (Mac ) | Control + I (Win) will invert a layer mask (or, click the Invert button on the Properties panel).Option -click (Mac) | Alt -click (Win) the layer mask icon to add a layer mask to automatically hide the content of the layer (or the active selection).

Note that there are separate options for adding layer masks while ignoring/respecting the current selection. Scroll down to Layer Mask> and add your own shortcuts by clicking in the blank area to the right of the command. Set the “Shortcuts For” to Application Menus and toggle the disclosure triangle for the Layer menu. To add a layer mask to a layer, click on the “Add Layer Mask” icon in the Layers panel or, to create a custom keyboard shortcut for adding layer masks, select Edit > Keyboard Shortcuts.

Adobe photoshop 2017 keybinds