"Bored Parents" Is that even possible? You actually have time to get bored? My hat is off to you! Welcome to the Trip Advice Planning forums.
The RTA Custom Maps program will go exactly where you want it to go -- and the way you do that is to use the Waypoints system. Here is a thread where I give an example of how that is done. You can read all of the posts in the thread if you want to -- but the first post will give you the gist of it.
Please, let us know if you need any more help!
Mark