2021 Solitude 380FL drain valves

[Tsmaster]

I am wondering the order of the 4 drain cakes in the rear pass-through. I know the top two are gray water and the bottom two are black water. Common sense would say the top is the forward gray tank (kitchen front bath sink), then the next would be the rear sinks and shower, then front restroom black, then the rear restroom black. Am I right in assuming that this is the correct valve layout. Owners manual is crap in this regard! Thanks in advance!!!

[Captcolour]

From top to bottom, mine are Gray 2, Gray 1, Black 1, Black 2. This is based on emptying them and looking at the level indicated on the panel. Also, the black rinse in the nautilus control compartment is for Black 1. The black rinse on the side of the rig by itself is Black 2.