By grouping multiple layers together, you can do things like move and resize them all at the same time, toggle their visibility together, or adjust their properties like opacity and blend mode .
How to create a group of layers
To create a group, select two or more layers on your Canvas and press ⌘ + G. You can also choose Arrange > Group .
How to ungroup layers
Select the group you’d like to ungroup and press ⌘ + ⇧ + G. You can also choose Arrange > Ungroup .
Selecting a layer in a group
Groups of layers are treated as one when you select them. To select an individual layer in a group, double-click on the group, then click on the layer you want to select.
You can also hold down ⌘ and click on the layer within the group you want to select.
To disable this across your whole document and automatically select a layer within a group without double-clicking first, check the Enable click-through for new groups checkbox under the layers tab in the Mac app’s Preferences.
You can also enable this for individual groups by selecting a group checking the Select group’s content on click option in the Inspector.