This plugin enables track changes in any document and does not allow you to disable it.
It is without interface plugin and isn't installed by default in cloud, self-hosted and desktop version of ONLYOFFICE editors.
- Add this plugin to yourself and open document editor.
If you need more information about how to use or write your own plugin, please see this https://api.onlyoffice.com/docs/plugin-and-macros/get-started/