To add a new image from the different pop-in when creating/editing an object (with tabs browse , search, create, bookmarks), it requires a lot a "clicks".

Add a tab "quick create" that contains the inline class form to create an object in the language of the current object and the other default parameters.
In the class attribute parameter, add a checkbox to have it in first tab.

Where :
In the rich text, in the "Select an image to embed" (add a new image)

• language : language of the current object
• position : media root
  In the Image asset, in the "add image asset"
• language : language of the current object
• position : media root
  In the ezobjectrelation, in the "select content"
• language : language of the current object
• class : available if only one class selected in the class attribute definition
• position : available if only one node selected in the class attribute definition