Context-aware frontend editing to add images.

[longtom]

I'm creating this site where a 'motherpage' renders all subpages.  I switched on frontend editing to make editing as easy as possible to end-users. 

I'm stuck on adding images to the subpages.  The frontend editor suggests to add images to the motherpage (that has no images field on it, nor should it), so it asks for another page to add the images to/from. 

Is there a way to make the frontend-editor context aware so that it looks for images in the correct subpage? 

I already tried the 'type C' approach and added <edit field="body" page="id">, but that doesn't seem to do the trick.