How to include Web Isolation users' copied and pasted content in the activity log records
In "Profile -> Activity Log Profiles" "Primary logging configuration" or desired activity log profile, make sure that "Clipboard events" has "Copied content" and "Pasted content" checked:
And that the transactions that require to be logged are matching policy rules where t above activity log profile is set:
* * * Be aware that collecting users' clipboard data may expose their private information * * *
Referring to Web Isolation admin manual "ArcSight CEF Mapping" chapter, the related common event format (CEF) field is "cat":