Maybe this can help the next person who has problems setting up ADAT channels in MR editor
To set up for ADAT channels you have to pan each group of channel L and R and mute the others. For example to the right you see 4 ADAT group channels (ADAT 1-2) (ADAT 3-4) (ADAT 5-6) (ADAT 7-8)
So for each one pan L and R and mute the rest
For example
(ADAT 1-2) pan channel 1 L and channel 2 R MUTE Channels 3,4,5,6,7,8
(ADAT 3-4) pan channel 3 L and channel 4 R MUTE Channels 1,2,5,6,7,8
(ADAT 5-6) pan channel 5 L and channel 6 R MUTE Channels 1,2,3,4,7,8
(ADAT 7-8) pan channel 7 L and channel 8 R MUTE Channels 1,2,3,4,5,6.
you can store the setting at the top and your unit will maintain these setting once set if they are changed you can just go back to your preset to reset