What is the Actors section?
The Actors section is a part of the Main tab of a Use Case editor where you can define and link Primary or Secondary Actors.
An Actor may play a role as a Primary Actor in one and a Secondary Actor in another Use Case.
You can access this section from within the Main tab in a Use Case record’s editor.
When to use it?
Use this section to add an Actor and link Primary or Secondary Actors for each specific Use Case.