I'm basically re-posting this person's post:
Hi, I am on the business plan for Retool. Only accounts with "editor" access to an app can switch environments. However, I want accounts with "viewer" access to switch between the "environments".
I posted this on the Discord channel. They could not help much and redirected me to the office hours. Discord
I visited office hours, and they told me I could now see the toggle button in Settings > Beta. But it hasn't worked for me. Hence, here I am, posting this message. This is getting on my nerves …
Viewers on our account don't have access to the environment switcher, and admins don't have access to the displayed Beta flag to enable that feature.
I sent an email to support@retool.com asking about this and received back an email containing nothing other than a "rate your conversation" widget.
Hey @SES_jyorke ! We've enabled that flag for your organization. Viewers should now be able to switch environments from the Retool menu when viewing apps. Let us know if they are still not seeing the option.