Make a request of what you would like added to it that you need for your application, and I'll see to adding it. However, since the majority of folks are using lavishscript, I'm not going to take the time to add everything to the wrapper unless someone needs it.
I am also more inclined to spend time on it for folks that are releasing public .NET applications. If you're making a private application and want things done faster than is currently being released, you also have the option of creating your own wrapper dll.