Ability to add waypoints for road trips

Hihi! I was wondering if you think it would be possible to add specific places when trying to add a car route. Like google maps where you can add waypoints at specific places and maybe even specify how long you would stay at each place before moving to another spot along the route. I know that you can edit the specific route you take when driving, which is awesome! However, if you could have the option to add specific waypoints and hours of stay at each place, it would be really appreciated!! Thanks!