Media Center Remote Control : how can I configure the 4 colors buttons?

"Media Control makes use of them, plugin developers need to jump through some serious hoops to access them. The hoops are full of fire and involve working through a lot of undocumented stuff. So its quite rare to see these buttons used.

They are completely unconfigurable out-of-the-box and have a very restrictive teletext use, a feature which most people do not use."