autoplay + remote acces over intenet

I wonder if it’s possible to set ATV to start autoplay with preselected playlist when turned on

another question is if it’s possible to access let’s say 10 or 20 ATVs on different locations over FTP and upload (update) video content and playlist (the one I mentioned above) as well
or is it possible to set up all those 20 ATVs to connect to my FTP automatically once a day or week and update video content automatically

Let’s say that I’d like to use it as sort of a info channel off site network