User has a right click entry "Nuxeo Drive", it presents a QT Popup with a webkit browser inside.
The HTML page displays a tab called metadata
In this tab, there is a toggleable layout that allows to edit the layout defined for the given document type.
Note: built-in documen ttypes have one layout with edit and view modes, while Studio made document types have one view layout and one edit layout, with a naming convention. We should make sure to handle both cases properly - This can be seen with Anahide.