Cannot click the Rescan button on the Securlet because it is greyed out.
The scan is complete and there is nothing to scan.
Rescan will only target exposed content and not all documents in the cloud service.
Create a ContentIQ profile with some harmless rules. Such as a trivial regex that documents are unlikely match (e.g. "^abcdef$"). Make sure that the profile is saved with "Include in Securlet Scan" as ON.
Then go to the Securlet dashboard and click on "Options" drop-down. The menu should show an option called "Scan Now". This option may appear initially as grayed/disabled but should soon get enabled after a 5 second delay.
Click on this choice to trigger a complete download and rescan of the documents.
(NOTE: Please exercise this option with caution as it has performance and cost implications for Elastica as well decreased throughput for other customers)