I'm building a layout with hands-off, display-style operation. Is it possible (and safe) to operate trains on a timer? For instance, in conventional operation, could the mainline transformer(s) be set at the right speed with engines locked in forward and the transformer plugged into a timer ready-to-go? Or is there some kind of harm in starting up the trains this way?
If plugging the transformer into a timer is okay, there are a number of wifi smart timers which could cycle transformer/trains on/off, even in small intervals (5 minutes on/5 minutes off, etc.), which might be a simple means to accomplish this.