How can I whitelist a new redirect URL for OAuth?

I’ve been developing a web app locally that connects to Shopify via OAuth, and I recently deployed to test things out. I need to add a new redirect URL to whitelist. But I’ve looked everywhere from the partners portal to the dev portal, and don’t see a way to update this whitelist. How do I update this? I feel like it shouldn’t have been this difficult.

Now the redirect url is under app developer dashboard .
under the app developer dashboard(portal) there is **version **
under that there is a create version btn, click on that you will now see scops and allowed redirect_url field, now for every version of app you can have different redirect_url and scope