Akira,
The point you are making is fairly valid: MC's documentation isn't complete, or super easy to search. Most everything you need to know is documented either in the Wiki or in the forums, but it can definitely take time and research to find it. I've spent quite a bit of time figuring out the things I know about MC.
What you're going to find, I think, is that the JRiver staff don't have an interest in massively changing their documentation model. They've previously spent a bunch of money trying to get it documented fully, and ended up with something they couldn't use. That's the story I remember anyway.
Just some friendly advice: Your posts seem to be a little angry and demanding sometimes. Maybe it's just how I am reading them. But I can tell you from experience that these types of posts mostly get ignored. The more negative emotions there are in a post, the less likely it is that JRiver staff will respond in any kind of positive way. I don't mean this observation in any kind of negative way. I'm trying to help you get what you want.
If you have questions, please ask. I'm here to help.
Take care,
Brian.