Ability to add local (private) radio URLs

It would be great if it were possible to add local only (or private) radio station URLs. With many paid online radios like DI.fm it is not possible to add the streaming URL to the global radio list because this would violate the subscription agreement (the URLs contain private account based API keys).

I used Lollypop for this in the past but unfortunately they removed the radio function entirely from there now and just left a note saying that you should use Shortwave now. But without that feature both programs are now basically useless for me.