I'm working on a project determining new routes and stops for public transit in Perth, Australia. I have the current routes as a line layer and current stops as a point layer. I know where I want new stops to be. I would like to know if Network Analyst tools will absorb the current route and stops and if it will then create routes to the new stops. If this is possible, please walk me through the process. Also, please let me know if there's another way to create these routes outside Network Analyst. Thanks for any help provided.