I need prompt version control feature & powerful UI for integrating third-party APIs for my company custom GPTs

We are using Team Workspace and I am the owner of our team which has about 100 teammates.
To improve our operation team efficiency, I am working on configuring few custom GPTs

Feature Requests
-we need version control feature for the instructions as we need to iterate the instructions based on our operation team’s feedback

-we need powerful UI for integrating third-party APIs as the current UI is not friendly for integrating the 3rd party APIs which need authentication. For example, SerpAPI