I would love to see a feature to "Insert a Mockup" - an external mockup as a reference. Changes to the original mockup would be reflected in any mockups that use it.
I realize this is a complicated feature with many implications such as an ability to orphan the inserted mockup; handle cases where the mockup is missing or renamed; not allowing circular references, etc. This feature would be made possible by a storyboard mode or project manager feature.
Still I wonder what others think of this idea? I