I have a schema with many tables and would like the Data Modeler (in SQL Developer 3.0) to create a Relational Model sorted by table name in Alphabetical Order. The default seems to be random alphabetic order.
There's an algorithm involved, and I'm pretty sure it's related to the number of grouped objects by relations, but instead of guessing I'll ask the developer to weigh in with the 'real answer.'
When working with larger models, I've found the #1 tip for making them easier to digest is to break them down into smaller SubViews. Have you experimented much with this feature yet? Also, you can right-click on a table in the tree and 'Go To Diagram' to find the object in the diagram.