Already hosting. Can’t change feed url

The Destinations tab is for specifying URLs to outside services you’re syndicating your podcast to (iTunes, TuneIn, etc.). It’s not for changing the URL of your PowerPress podcast feed. By default, PowerPress uses the /podcast slug within WordPress. What are you trying to achieve by changing the URL? If you want control of the /podcast slug, you can the steps outlined on this page:
https://create.blubrry.com/resources/powerpress/advanced-tools-and-options/disabling-powerpress/

I already host my feed and content. I don’t want PowerPress to manage it for me. I just want to point PowerPress at my feed so I can use the player and other options.

Hello @brizzy,

It sounds like you do not need the features or settings in PowerPress, you just want the widgets on the pages. In order to use the widgets you can use the shortcodes. We have a shortcode for the player and the subscribe embed. If you want links below the player, you can actually create those on your own which would allow you to replicate everything PowerPress does if you did use it as your podcast platform.

You may be able to “fool” some of the tools in PowerPress by putting your feed URL into the FeedBurner setting, but I am not exactly sure that will work in your situation. Also note that this plugin was not designed to work in this way so there is no guarantee that it will work now or into the future.

Just keep in mind that podcasters who use powerpress use first and foremost for podcast syndication management. Everything uses settings and attributes from this to then create all of the other features that you are trying to use. It doesn’t work the other way around, but some of the features you can use with shortcodes as I previously explained.