I think from a UX standpoint it makes more sense to put the Remember for… toggle below the key selector, since that’s the order I would use them.
1. Select key
2. Allow for 30 seconds
3. Approve
The key selection is not available in the override permissions screen. I am planning to also add permanent permissions for specified operations from the browser. Ideally, you’d have the permissions in the app so it doesn’t ask you all the time