You tagged me, but I suspect you meant to tag Coach Chad Timmerman? If so, he’s @ Chad (without the space, I just don’t want to tag him unnecessarily). I am not a TrainerRoad employee, but I help moderation on the forum.
To your basic suggestion and questions, TR has a number of resources for learning and using their app.
My primary source is the main support center.
https://support.trainerroad.com/hc/en-us
I use the search there to find answers to many questions.
Lots of training questions are covered here.
https://support.trainerroad.com/hc/en-us/categories/200097620-Training-Questions
They also have the blog that can be searched too.
When you are active on a TR plan, you can use the new Plan Builder to setup training with events in mind.