Manipulating the Paper Map

I see that the Paper Map uses MapEntity which has:

Code:

    [NonSerialized]
    public uint[] fogImages = new uint[1];    [NonSerialized]
    public uint[] paintImages = new uint[144];

So my question is how would I go about manipulating the map? For instance, how would I make the entire map visible and/or draw a circle to indicate something on the map?

Also, is there a way to dump the RPCMessage that MapEntity -> ImageUpdate receives so that I can figure out what the values are?