step 1:push the mini-menu button - right next to the down arrow on the SEQ screen
step 2:scroll down and ADD an AUDIO track to your SEQ page
step 3:repeat steps 1 but ADD a AUX track instead
step 4:On track - Audio 1, assign the input or your perspective Audio card by going to the input section of that track and single click and hold fo your choices...
step 5: in the output column chose BUS 1, as your output
step 6: RECORD enable Audio Track 1
step 7:On your AUX track that you have assigned to the screen, go to the input section, just as you did on Audio Track 1 and chose OUTPUT 1/2..
and now you can monitor your incoming signal of Audio 1 thru and AUX bus...