hello i just got an mx980/mrf260 3 days ago and everything is setup but i have 2 questions

1. i have a ps3 with dino blue wave ir dongle how do i learn the ir for this thing? (dino)

2. i have a power on macro that turn my dvr, tv & amp on (switch inputs too)
and I use others buttons to fire up my dvd, cd, etc
my power off macro turn my dvr, tv & amp off but i would like to use if/else or if/then statements to check if dvd is on then turn it off (if not dont)
i only have discrete on/off on my lights and amp so id like to know how to do that.
thx jack