Q:

Cross-referencing UML models in VS 2010

I am just starting to explore/use the UML modeling support in Visual Studio 2010 Umltimate.  I have created two model projects within a single solution.  Let's call them Model A and Model B.  I have some data types (classes) defined in Model B.  I want to use them as return types for operations in Model A.  However, I cannot figure out how to make the types defined in Model B show up in Model A when attempting to set return type on an operation.
Any help/suggestions would be greatly appreciated!
Thanks!

A:

In this release, all the types must be in the same model.

