Ok check out the forum titled "MAX7219 in daisy chain. How many decop capacitors I need" it should be fairly newly updated, and in there is what I did.....I did end up cascading them and its working for the most part but the scrolling isn't going across one matrix to the next, it just scrolls the same letter on each matrix individually...
and the letters are backwards....I tried to swap the wiring on just one matrix to see what that would do and it made it erattic...