Would be great to have UML style blocks:
It would be great to have a specific shape with a little more intelligence than standard rectangle shapes; somewhere between tabs and tables.
Real UML notation is fairly simple, though I think you could get away with something even simpler:
- A coloured header component
- Lines of text that would expand as needed
- Connectors could link to the block or a line of text
- Perhaps a separator line, or “add section” button