This is getting quite indispensible!  

I have a feature request.  How about a way to add files from the program, rather than just copying them ahead of time?  An Add files button, so to speak.  

Also, an intuitive way to end the process in the middle, like after the current install finishes.  I haven't figured out how to end the program early yet; though i could have sworn I read something on how to do that.  

John