Every content item in this list is tagged with all the required labels:

• attach-file
• collaboration
• composing
• creative-cloud-files
• dead
• info
• lessons
• office365
• stream
• teams-app
• text
• to

To add a label to the list of required labels, choose '+ labelname' from Related Labels.
To remove a label from the required labels, choose '- labelname' from above.