Currently, when dealing with complex data models, managing the Entity Diagram in Service Studio can be tedious as entities and relationship lines easily overlap and cross over each other. I would like to suggest two main improvements for the Entity Diagram canvas: 

• Smart Auto-Rearrange: A button to automatically reorganize the positions of all entities in the active diagram to prevent them from overlapping each other.
• Orthogonal/Straight Relationship Lines: The ability to render the connection arrows as clean, straight, or 90-degree orthogonal lines (instead of the current diagonal/curved style) so it is much cleaner and easier to trace for documentation purposes.