import customization from test environment to production

Summary:

Looking for a method to import Page customization done through Sandbox from test environment to production

Content (please ensure you mask any confidential information):

Hi All,
We have done a page customization on the Supplier Portal to hide the DFFs on Purchase Orders. We are looking for a way to move this page customization to production. In production, since we will not have access to the Supplier Portal, we would like to know if there are methods to directly do an export - import for the page customization? Are there any methods that allows to do the export - import of page customizations in Oracle Cloud?