Users are unable to Add Special Handling Notes in Agent Workspace UI.
1. Log into instance (Paris or Orlando).
2. Go to Agent Workspace.
3. Open any case and Navigate to Special Handling Notes.
4. Notice there is no Add button.
5. Try same in Platform UI and User can add Special Handling notes.
6. Attached screenshot for reference.
This is expected behaviour. The following documentation details the actions that an Agent can perform in workspace and platform