[Joel]

Unfortunately no on both counts:

- OmniOutliner has no concept of line labels, so there's no way to map that information into OmniGraffle (similarly, the Outline Editor in OmniGraffle does not display line labels)

- OmniOutliner can only create hierarchical data at the moment, the idea of clones or aliases (where one child can have more than one parent) hasn't been implemented in OmniOutliner as of yet

OmniGraffle can however create diagrams where there is multiple parentage, but that won't show in the Outline Editor either.