The tool to use isPage Composer.
Step-by-Step Solution:
* Navigate to the Requisition Overview tab in a sandbox environment.
* Activate Page Composer from the administration menu.
* Locate the Metrics report region on the page.
* Replace the delivered report with a custom OTBI report by updating the component.
* Save and test the updated layout.
Page Composer allows administrators to customize page layouts in Oracle HCM Cloud, including replacing delivered reports with custom OTBI reports on tabs like Requisition Overview. Transaction Design Studio is for transaction rules, not page layout changes. Reference: Oracle HCM Cloud User Interface Guide, Page Composer section.

You need toactivate the available embedded AI functionality.
Step-by-Step Solution:
* Go to Recruiting and Candidate Experience Management.
* Locate the AI settings section.
* Enable the embedded AI features (e.g., Suggested Candidates).
* Test the intelligent matching in a requisition.
These AI-driven features are embedded in Oracle Recruiting Cloud and can be activated via configuration, not requiring special requests or disabling other features like resume parsing. Reference: Oracle Recruiting Cloud AI Features Guide, Intelligent Matching section.