When I first started reading on this, I assumed this would be a utility on how to manage my existing images. Specifically, up till now, anytime I wanted to update an image, say, update the programs that I have in the image to the latest versions, I would have to install the programs to a computer and take an image of that computer.

I was hoping that you can do this with image explorer, but after reading the documentation, I don't think you can just update a program inside an existing .zmg file. Am I right on this? Basically, just not sure what the purpose of this program is.