[quikee]

Well, that's almost how it work but of course without the waiting bits. The change would be added to LOExt namespace and would be written to the document and read on load. Then the change is proposed for inclusion into the next ODF version. Once the ODF version is released, LO would add support for that as well and changed if needed. On next save the feature would use the ODF version instead of LOExt.

The process has its issues and could cause problems, but in practice I don't remember anyone reporting issues.