This plugin shows how to manipulate the editor from an external panel of a 3rd party service.
It is called Listener in the interface and isn't installed by default in cloud, self-hosted and desktop version of ONLYOFFICE editors.
- Open the "test.html" (pluginfolder/test/test.html or pluginfolder/owndrop/test.html) file and past url to editor in iframe src (this file has instruction how to need open it to try).
- Open the "test.html" file as described in the instructions inside the file.
- Find the plugin in the Plugins tab.
- Press buttons (or dropping item) in left side of screen to try it. Also you can write your own scripts (test2 folder).
If you need more information about how to use or write your own plugin, please see this https://api.onlyoffice.com/plugin/basic