Replace media upload with external image url

Hi! thank you for this wonderful plugin!! 🙂

As I don’t want my users to access my entire media library each time they want to add a featured image to their post, I had the idea to use the external image url plugin ( https://ww.wp.xz.cn/plugins/external-featured-image/ ) so that they just have to enter a url in a field on the frontier-post form.
But… I tried a lot of things and as I am not good in coding at all was not able to to it :/

Is there any way to implement this lightweight plugin in frontier-post to replace the media function? Any ideas how I could do that?

Thank you very much!! 🙂
Dorem

https://ww.wp.xz.cn/plugins/frontier-post/