Implementing Security Roles for VBCS Application Extension Page

We are in the process of creating a new application extension page and would like to implement security roles to control access.

Could you please advise where we can configure HCM Fusion roles for the VBCS application extension page? Specifically, we are looking to manage access to the page and control visibility of components such as buttons, etc.

We are aware that this functionality is available in Visual Applications, but we need your support to implement it in an Application Extension.