Dan, glad you are enjoying this interim update!
I can add Trainer info to each past running line. TrackMaster only supplies info when a Trainer CHANGE occurs which by itself should be enough and the same as noting the trainer on each line (and the same info as provided by every public Past Performance listing). But by extrapolation - and just like Jockey info for each line - I can add the Trainer info to each line by noting change or absence of change of Trainer.
Has been on my list, but not too high up

. For some update later this year!
Thanks,
Ted