it would be extremely helpful if you could set up an auto-hard save feature at a custom interval (say 5min-30min, checks only happen if changes are made). this could help remove risk of recovering docs and saving over the temp files, and also potentially provide a version history to roll back changes like word has.

this would be also be helpful if someone (like me) uses desktop programs, but a cloud sync service (e.g. dropbox, onedrive, syncthing) to synchronize word docs between computers, so the most up to date version is automatically saved and sycd. of course, this has the potential to cause version conflicts if the files are simultaneously open on multiple computers and changes are pushed to local files on one computer from a separate one via a separate program.

Hello,
The Desktop app already has this feature:https://helpcenter.onlyoffice.com/desktop/desktop-faq.aspx#:~:text=I%20edited%20document%20but%20due%20to%20a%20crash%20all%20changes%20are%20lost.%20Can%20I%20recover%20it%3F
If you are talking about the server based Docs, you can implement Force saving feature which allows manual saving via button or programmatically:: https://api.onlyoffice.com/docs/docs-api/get-started/how-it-works/saving-file/#force-saving
https://api.onlyoffice.com/docs/docs-api/get-started/how-it-works/saving-file/#force-saving:~:text=Defines%20if%20the%20automatic%20forcesaving%20is%20enabled%20or%20not.

If I misunderstood the request, please clarify it.