Is it possible to call OIC integration from Visual builder studio part of Saas

Summary:

Hello,
I would like to know if it is possible to call OIC integration API from Visual Builder studio part of Oracle Fusion.
Currently Visual Builder Studio supports None and Oracle Cloud Account authentication types.
Is there a way to call OIC integration api from VBS.

Assuming there is no way to configure basic auth in VBS.

I would like to know if there is a requirement to create federation between Oracle Fusion and OIC.

Please provide reference for federation between Oracle Fusion and OIC.

Considering both scenarios of same tenancy and different tenancy.
Thank you.