| Select the Layer Mask Thumbnail and use any painting tool to edit your mask |
| Alt (PC) or Option (Mac) click on the Layer Mask Thumbnail and use any painting tool to edit the mask. |
| Choose Window > Properties and then select the Load Selection from Mask button. Use your selection tools to edit the mask |
| Select the first Layer Thumbnail and hold down the Alt (PC) or Option (Mac) key while painting |
