Feature Request: Editor, images and media

In the editor, when adding an image to either a tinymce or uploads block, it would be nice if we could add the image directly to media for reuse without leaving the current window.

Right now, we need to save the record, go to "media" to upload the image, then return to the record to add it. 

While I am at it, it would be nice if we could use srcset in the TinyMCE editor for uploading images.