Once one has learned to use GEOframe-NewAGE one possibility is that they wants to add some to it. For doing it, you have to learn a little of Java first. In this case, one possibility is to give a look at the dedicated post on AboutHydrology. If they knows a little Java, though, or if they is just curious and bold, he can give a look to this video
Definitely, you realize that it requires just a few lines of code and it is not so difficult (once you have climbed the Java learning hill)