Click "Edit" from computer menu.
Type tags by inserting comma (",") or semicolon (;) and click "Save" button.
Click the tag icon ( ) of the computer to quickly preview your tags. Clicking a Tag will automatically search for all computers that have the particular tag attached.
Note: You can always search for tags and computer names via the Search option (), or just start typing when Computers tab is open and search will be performed automatically.