Hubshare - How to save annotations?

I'm using the M-Files Views widget and have enabled annotation edits.

I can apply annotations to a document but I can't figure out how to save them.

For example I created this comment annotation in the M-Files vault and it displays in Hubshare. I have then, from Hubshare,  added a reply "It sure is".

If I then close the document I get a warning that my changes will be lost. How do I save the reply before closing?

Thanks