I tested it on a large map with 200+ LTN trains and found it sadly unusable in its current state.
I'm interested in either specific train ids or trains with a specific stop in their schedule.
Adding a way to filter for those would make it really useful.
Its hard to keep focusing on one line when viewing over to 10 trains.
Alternating background color between darker and brighter grey would greatly improve readability.
After line 40 or so the list simply goes off screen.
The list should be limited to what fits on screen and use multiple pages if it exceeds that limit.