OOo Draw : ER Diagrams

[RazorbladeXtreme]

I need some additional functionality in Draw so that I can show multivalued attributes (Hobbies is multivalued attribute in this picture : http://www.juniata.edu/faculty/rhode...ges/eratts.png) and total participation of entities (shown using double line).

I am new with OOo so couldn't find a way to do this with inbuilt features neither could I find a suitable plugin, any help would be appreciated.

I'd also love something to allow me to export diagram to pdf or image without losing much details, I lost lines under the primary key attributes while exporting the diagram to pdf.