Provide an option to render the 'add' and 'edit' buttons of referenced/child entities on the parent entity display view.

As it is now I have to edit a parent node in order to add or edit referenced entities. It would be really useful to skip clicking the "edit" tab on the parent node and (optionally) have the 'add' and 'edit' buttons added by the module also be available next to the listed child entities while viewing the parent node. No point to have users go to the full parent edit form in order to do a simple task such as add or edit a child entity.