This possible in ADDA converter modus, because there its possible to configure the digital source for both analog outputs individually, like described in my blog article here:
http://www.tonstudio-forum.de/blog/inde … ort-DE-EN/
The only problem might be for you, that you need to feed the signals through two different digital inputs like AES and ADAT (1/2).
I am not sure, but I think optical and coaxial are not really 2 separated inputs.
The problem with this approach will be, that you do not have AES on your Multiface.
So, a better way would be to get an interface with AES and ADAT for this reason, could be UFX*, RayDAT, ..
BUT ideal would be, to get a recording interface which works with the same MADIface ASIO USB driver, like the UFX II or +, because then you get another cool option without having to waste 2 digital links for such routing tricks:
because then your DAW can access both audio interfaces through USB via the one ASIO driver.
IIRR this was one of the reasons why I recommended to you in the past a combination of UFX II/+ for greater flexibility.
You only need to sync clock ie via AES (master is UFX II/+) and take care, that you always use the same ASIO buffersize for both devices.
The ADI-2 Pro needs to be set to multichannel mode while it's disconnected from USB.
Now the DAW can access all inputs and outputs of both audio devices directly.
BR Ramses - UFX III, 12Mic, XTC, ADI-2 Pro FS R BE, RayDAT, X10SRi-F, E5-1680v4, Win10Pro22H2, Cub13