There is, as far as I know, no way to make sure your login session does not time out (perhaps there is an option in the config files).

However, you don't need to be logged in in order for an automation to work. That's the beauty of them, they'll work as long as they are enabled and the server is up and running, regardless of whether or not the user that made them is actually logged in.

Thanks @Hans van der Maarel​ I was concerned about the automation. Actually, I have two servers and one of them never logs me out but the other one is logging me out every day. It's okay if it doesn't affect the automation.