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Hello, doing this Omnigraffle try out to consider switch from Axure. Does OmniGraffle have versioning or some sort of share project capability like Axure. I work with a large team and though we mainly work solely on projects there are times we need to be able to share and work on a document simultaneously. Does Omnigraffle have this?

AFAIK OmniGraffle does not have a "concurrent edit mode" like you Axure has.

The closest you can come is probably using the Linkback function along with Sub-Graphs - however, this is really a sub-optimal way of emulating a concurrent edit mode.