Add more details to control in Command-based articles

[Gold856]

Extension of #2684

[jasondaming]

This details in depth much more what is happening. The issue I have is that I am unsure what the user is learning from reading this. They either have the skills to be able to look at the code and see the same things for themselves or they don't in which case I don't think they can read or make sense of these paragraphs. It also doesn't describe any of the "why" these things are being done.