No documentation on how to start and end votes

[InterFelix]

I am trying to set up OpenSlides with the voting plugin (version 2.3 running from a customized docker image).
I can't figure out how to start a voting.
I can add a poll (Abstimmung in german UI) and choose it's type.
What happens next? I don't know. Is the poll started already? If not, what do I have to do to start it?
I really can't seem to figure it out. But then that would mean three people all trying at the same time can't figure it out.
Maybe get some documentation regarding this out there...