I can tell you that I have the Mits 62725 and
two weeks ago used the process that Mike outlines
above and it works perfectly. For example now
my wife can hit the button labled "Movie" and
the Denon DVD5900 tray opens; the Denon receiver
switches to DVD in; and most importantly the Mits
input switches directly to DVI.

I also have setup the other Mits input discretes
in other macros (and the "on/off" too). Mike
was a life saver. Thanks.