Import Oracle Tables in PME

In Oracle each user has its own schema. Therefore tables are owned by the user. As a security measure it is possible to grant SELECT permission from one user to another. This allows the user loging in to the database the ability to see data in someone elses table without being able to alter it. We use this feature. All of our reports are run from one user, and accessing tables from multiple other users.

Now the problem: In PME I need to import tables in order to build my business objects. However, when I try to do this, I recieve an empty list. How do I specify tables in another schema for import?

I am using pme-ee-4.8.0-GA

Thanks