Select items
To select one or more items—such as contacts, emails, files, folders, or photos—do any of the following:
- Select an item: Move the pointer over the item, then click it. 
- Select multiple items: Press and hold the Command key, then click the items. 
- Select multiple items that are next to each other: Click the first item you want to select, press and hold the Shift key, then click the last item. - You can also click near the first item, press and hold the mouse or trackpad, then drag over all of the items.