First of all, the History feature is a great enhancement to collaboration.

However, I'd wish to be able to say which version of my document finds its way to the "history line".

The reason: When I am working on a document I do SAVE often and so the time line is populated with steps which represent just little changes, instead of major milestones in the document. A result is, that I can't often go back in time more than two days.

Would be great to have something like SAVE SNAPSHOT to preserve certain steps in the live cycle of the document.