I am playing a bit around with the Deep Network Designer and struggle with huge architectures like YOLOV5FACE. The biggest constraint is the C3 Layer which includes itself 27 Layer. Even if I export parts of the network and import them back from WS the result is a constant growing structure with little to none overview. Maybe I am a bit spoiled from the subsystem function from simulink but in my opinion the Deep Network Designer lags this function or I am not able to find it. I only see at the moment to create a custom layer for each subsitute network structura as a solution.