Find a new location in a route

Hello. Is there a way to search for an address on a route map so that you can manually reroute your end or start, or any point of the route, to this new location? Often one creates a route and later sorts out exactly where you are staying near the end of a route and it would be helpful if you could just find that address and draw a new end or start. As it is now you can search for a spot but if you add to end or to route it redraws your entire map often sending you on a completely different trip.