IPython Notebook Multiple Checkpoints

I see that IPython Notebook has a menu item: File > Revert to Checkpoint, but this never contains more than a single entry for any of my notebooks.

Is there a way to allow this menu to hold multiple checkpoints? I can't find documentation about how to do this anywhere on the web. Thanks.

Also, I put in the green box as a highlight.

Solution 1:

Bookstore (post on rackspace) is the only storage backend that supports multiple checkpoints for now. We hope that someone will write a git backend at some point. It will just not come from the core team soon.

If you are motivated to do so, we'll be happy to give you pointers.

Solution 2:

maybe you can try this, I add multiple checkpoint for every time of saving . https://github.com/jupyter/notebook/issues/3563