Right click on your package
no matter which. Click Diagrams
> Show Diagram
(Ctrl+Alt+Shift+U). You will see your package in diagram editor.
Now:
- You can
expand
(E) orcollapse
(C) all nodes. - You can show dependencies
- You can show many attributes of nodes (constructors, methods, properties…)
- You can drag&drop other packages from project explorer.
So, play with it a bit and I think you will achieve what you need.
This is how it could look like: