Explanation
The Exceptions settings allows you to change the response to a specific signature. For example, you can block all packets that match a signature, except for the selected one, which generates an alert. The Exception tab supports filtering functions.
If you not believed, then login the firewall go to Vulnerability > Exceptions and select "Show all signatures".
From there you will see all threat information including specific actions.
More detail: https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000Cm4yCAC