I’d like to save a few clicks when I add a hosted, public image in a doc or entity.
For example, we write a lot of schemas using PlantUML.
I edit the schema online using http://www.plantuml.com/plantuml/uml/SyfFKj2rKt3CoKnELR1Io4ZDoSa70000
I get an image URL like http://cdn-0.plantuml.com/plantuml/png/SoWkIImgAStDuNBAJrBGjLDmpCbCJbMmKiX8pSd9vt98pKi1IW80
I’d like to simply paste this URL in the page and get the option to embed the image. Or to type some markdown like

At the moment I have to open the image in another tab, and copy/paste the image. Plus I lose the URL, so I have also to copy/paste the URL as an image caption.
Note : not my need, but some would probably appreciate a similar feature with video URLs such as Coder un bouton avec un effet "after" en HTML et CSS - YouTube
That’s one the last things I miss after the migration from Notion.