Here is what you can do. In the Configuration Tool add a new form to the object referenced by the attribute. The form should have one row. You can adjust labels and displayed length for attributes for this particular form.
In the presentation dialog for the reference attribute on the other object, tick the "Allow Inline Editing", click "Use form for each row" for "Display Method" on the right, click "Details" button next to it and select the newly created form on the related object.