Owncloud with desktop editors

Hi,

Please help - I want to edit a docx file stored in an owncloud server with the desktop editor for mac – version: 9.0.0 555-172 Apple Silicon

I refer to this: Integration Guides ownCloud - ONLYOFFICE

When I do like described in the docu, I get a prompt to save the file locally. I guess this is not what I want to do… do anybody has experience with this?

Kr

Gabriel