RE: Unified Interface - Navigation Bar - Quick Create Case
To enable quick create for an entity you will need the following elements:
Entity settings: Allow quick create: yes
Entity Forms: quick create form needs to be created / existing and activated
To enable quick create in the model driven app:
- add the entity + quick create form to the app
Entity settings: Enable for mobile
If all these things are enabled and ok, press the 'publish all customizations' button again, afterwards go in your app, remove a form, add a form, press save, validate and publish.
That should do the trick.