Can I run third party hardware (edelkrone, Noxon, etc) through the DMC-16, in order to get its functionality?
Except for Ditogear equipment with their DMC-16 adapters, the answer is ‘no’.
Most third party systems are closed systems. They have their own control signals, drivers, etc, with cabling that is not documented.
The DMC-16 outputs step and direction signals. These can only go to devices that have inputs for step and direction signals. Typically, that would be a stepper motor driver.