Question about Prism and MVVM

Hi!

I am currently developing a WPF prims application, and there are some issues we haven't sorted out. Hopefully there is someone here that can give some tips.

1) We have a view composed like this

* Region Workspace
- View Editor
--- View chart
--- View statuslist
--- view toolbar
--- view editor

As you can see the editor view consist of multiple child views, and each of these child views has a viewmodel that is declared in the ViewEditorViewModel class. I also for each view has a public sub new(vm as IViewModel) that allows unity to inject a viewmodel to respective view. But that approach is rather pointless in my view composition, since I do a bind to the ViewEditor for each of the child user controls data contexts... Do we do things wrong?

2) We have some user controls + Business logic that is used in multiple prism modules. We should we store this stuff?

a) In a module and let other modules reference it
b) In a common.ui module and inject it? How do we inject user controls??
c) Put it in a standard class library common.ui and just reference it.


Thanks
Henrik