Automatic versioning of models similar to Google Docs

It would allow us to quickly go back to a previous edit and also note who edited the model along with the date and timestamp. We would also like to have auto save functionality which can be configured if needed in a particular model. We can toggle for auto save which should allow us to automatically save the model where it is turned on.

Versioning is a manual process currently which does not meet the same functionality mentioned above.

Note: We just mentioned Google Docs as an example.