Multiple routes from a common starting point

How can I create multiple routes that have the same starting point?

My boat lives up a river. Once I reach the sea at the mouth of the river there are multiple ways I can proceed. I have a waypoint at the mouth of the river and created my first route from there. When I try to create a different route starting from the same waypoint ActiveCaptain always picks up my original route and will not let me add another route. Is there a way to add another route from the same starting point?

The consequence of not being able to do this is to have multiple starting points or waypoints within close proximity of each other. This results in a messy appearance of multiple waypoints at my river mouth instead of one tidy waypoint from which multiple routes branch.