Denon has several surround settings but to me it looks like it wouldn't be beneficial to use anything other than direct/auto, stereo, and multi-channel. Those three settings run audio direct from the source material. Just wondering what everyone else is using.

LFR1100
VP180HP
EP600
M3 In Ceiling x 4
M5OW
M2 - Atmos rears
ADA1500.5
M3 Outdoor Speakers
ADA 1000.8