I created a small demo project which explains the Extensibility model in VuGen 11.5X. By understanding this model you gain the power to create any extension to VuGen ranging from a simple button to the most complex snapshot view. The first example is available here:
It covers some of the basic concepts of the extensibility layer. If this example is beneficial for you and you would like to see more examples in this direction, please reply on this thread. I am currently planning (at least) one more example so if you have ideas or want to implement something on your own then I am here to listen.