Note: I have used Oracle Warehouse Builder 11.2.0.1
Start the Design Center
Start button -> All Programs -> Oracle 11g Installation (Name) -> Warehouse Builder -> Design Center
You can see that there are no object in the ORACLE_MODULE1.
Click Right -> Choose Import -> Database Objects ...
Choose the objects (from the source database) to be imported. Click on "Next".
Choose the objects to be imported / re-imported. Click on "Next".
From the summary screen, choose "Finish" button.
You will see the following screen:
When the import is done you will see:
You probably will click on "OK" to make the import permanent.
If you click on the "OK" button, you will see the tables imported in the Oracle Warehouse Builder (Navigator):
Save this import : Ctrl + S