Yes Gopher Tech that solves only half the problem, you can organize the customers within the route, but you can not organize the actual routes themselves. They print in the order they are entered, so if you add a new route, that route automatically is printed last. Furthermore this is unconvienant, because say you wanted to complete the new route first or second. You can not drag or drop these.
This is maybe something you can do in a next edition or update if you ever do those sorts of things. Just an idea.