How to flatten nested descriptions

Hi I have an object (a command) that references some other object (a model object). Instead of copying all descriptions on the class side I use a MAOneToOneRelationDescription (I guess I'll have to make a copy for editing so it works with the persistence). This works so far but I'd like to flatten the editor component to that the fields of the referenced object are mixed with those of the referencing object. The description looks something like this: descriptionItem ^ (MAOneToOneRelationDescription selector: #item label: 'Rule' priority: 100) componentClass: MAInternalEditorComponent; classes: (Array with: SVACLItem); yourself. And the output like this http://img121.imageshack.us/my.php?image=nesteddescription3jp.png What I'd like is the 'Rule' label to disappear and the 'Principal' 'Allow' and 'Command' fields instead appear on its level. Did I express myself in an understanable way? Do I even use the correct approach? Cheers Philippe