For both planes we modeled the behavior of the demand pumps and simulating the numbers for the separate circuits.
The sim by default only supports one hydraulics circuit, which means if one circuit has pressure all the surfaces, thrust reversers etc. would still work. So there is pressure somewhere or none at all.
We would like to go into more detail in the future to separate which hydraulics circuit controls which surface but it might not make it into the AAU2 update.