Return from Onlyoffice editing

Hi, I just activated Onlyoffice on my Nextcloud and I’m happy to see that this works in the iOS app. But how do I leave the Onlyoffice screen and return to the file list? I guess there should be an additional icon left from the undo sign…
Regards Andreas

It seems that mobile editing in Onlyoffice CE isn’t possible anymore. I guess that’s the reason behind my topic.