Missing coauthoring option

[shippeli]

Hi,
i am using the document server (docker) together with the doceditor that is similar to the PHP example provided on your website. At this time i load a document, edit it and save it back using the callback. Works fine!
But i am completely missing the option to coedit a document. If i open the document in another browser, i see the latest changes but all changes i make in this new window will be ignored.
In the editor there is no symbol/option to share a document. Also i can not find some related values in the editor configuration.
Just to be sure: coauthoring is possible with just the document server?! Or will i need to use the community server?
Thanks in advance!

[Maxim]

Hello!
Please see information here https://api.onlyoffice.com/editors/coedit
I hope it will be useful for you!

[shippeli]

Ok, i found the reason just after posting this issue.
The problem was varying values for "document key", generated by getDocEditorKey() as this functions considers the users ip i guess. If i share one key it works. But isn't it the commonly case the users that coedit will have different ips?!?!?
Now i am wondering why the user names are not transmitted (UI displays "Anonym").
Thanks Maxim for your hint!