How to Work with Stacks
1 Organise your files Click on an empty area of the desktop, then choose View > Use Stacks. Alternatively, ≈- click anywhere on the desktop and choose Use Stacks, or click the desktop and press ≈+ç+0 to toggle the feature on or off.
2 View a stack’s contents
A stack looks like a bundle of files, with only one file’s thumbnail preview visible. Click on the stack to expand it and see the icons/ previews of files within it. Click the arrow icon at the top of those files to close the stack.
3 Convert to a folder
You can quickly turn any stack into a folder. ≈- click on the stack and choose ‘New Folder with Selection’. The stack will then be turned into a regular folder containing all the files that were in it.
4 Rename a stack’s items
You can easily rename items within a stack. Simply ≈- click on a stack and choose ‘Rename <number> items’. Choose from the options in the window that opens to rename all the files according to the criteria you specify.
5 Reorganise your stacks
Open Finder’s View menu or ≈- click on the desktop to show its contextual menu, open the ‘Group Stacks by’ submenu and choose an attribute. If you pick None, files are unstacked and return to their original positions.
6 Sort items in a stack
With the desktop grouped in stacks, you can sort the items within the stacks. ≈- click on the desktop, hold å, then choose an attribute, such as ‘Date last opened’ from the Sort Stacks By option.
7 Share files in a stack
You can open a stack and drag a file to another folder or drive, or ≈- click on it and choose Share to send it to an app, service or person. To share all files in a stack, ≈- click on the closed stack, choose Share, then a method.
8 Preview with Quick Look
To browse a stack’s contents, ≈- click on it and choose ‘Quick Look <number> Items’. Use the arrows (top of the Quick Look window) to navigate the file previews, view them in a grid, or use Finder’s new Quick Actions on them.