It should be a getting started demo. I think that one of the hardest things to grasp when first using MC is the more fundamental stuff like tagging and setting up view schemes. NetRemote is equally (if not more) of a steep learning curve but I think they did a really nice job with their getting started guide. Here's an example that shows how to add a button in NR that will talk to Girder and Open Notepad. This was just enough to get me started.
http://members.verizon.net/~vze3fgvv/NetRemote/create_buttons.htmlMaybe for MC it should cover something like:
Import some files
Tag them
Create a custom field and tag the files with that too
Create a simple view scheme to show all files with specific panes
Create another view scheme that only includes tracks tagged with the custom field
If I had time (which I don't right now) I would write it myself. I'm sure that there are lots of people on this forum who would be willing to help by writing a short guide with a few screen pics similar to the NetRemote one.