This mod allows automatically tracking a random train in map view to act as a screensaver. When the train arrives at the LTN depot, a new one is chosen when a delivery is created.
Is the tooltip that appears when you hover over the locomotive enough? If yes, for now you can turn on/off the GUI with CTRL+H and put the mouse cursor in the center of the screen. I'll see if I can make this tooltip always visible, but I'm not sure I can.
Error while running event train_monitor::on_train_created (ID 66) train_monitor/control.lua:209: attempt to index field 'last_user' (a nil value)
stack traceback: train_monitor/control.lua:209: in function <train_monitor/control.lua:198>
This doesn't look like code from my mod. My guess is you use https://github.com/TheVirtualCrew/factorio_train_monitor/ this mod. Maybe it conflicts with mine, but I need more info to debug it. I was running my mod on Nilaus megabase savegame with train monitor, it was working.