Access to multiple environments in viewer mode

At AGOT AI, we use apps to create dashboards for the customer. But first, we want to validate it internally. To do so, I want my engineers to be able to look at the staging dashboard (development) and validate it.

After we are ready, i.e., post-QA, we will expose this to our clients, who should see only the production dashboard and not be able to switch environments.

Hence, I want the flexibility to toggle on and off these settings per our requirements.