Social login Reddit

I’m using ultimate member social login and want for users to be able to login with reddit.

I found some guide on ultimatemember.com on how to unlock hidden social networks, example was for steam and I modified it for reddit.

I created the app on reddit, put in the Key and Secret. And it works but the problem is that Reddit app has only one redirect url field and I can make plugin work for only one page at the time, e.g https://example.com/login.

At least two redirects are required for this to work, register page and login page.

How can I make it use two or more redirects?