How to “Select All” Items
Use the “Select All” tool to make quick selections, whether you are working with media, playlists, or devices.
How to use the Select All feature
Step 1: Click the “Select All” checkbox to select all of the items on the current page. Once selected, an option to “Select All XX Items” will appear in the blue drop-down ribbon at the top of the page.
Step 2: Click on the option to “select all” items. All of your items are now selected.