Easily Insert Files When Composing a Case-Related Email
Agents can attach files to an email more easily. Files related to a
case or attached to an email are collected under Related Files in the file selector. You can add
multiple files at once. And the selector prevents you from adding duplicates.
Where: This change applies to Lightning Experience in Essentials, Professional, Enterprise, Performance, Unlimited, and Developer editions.
How: Add the Files related list to your case page layout.