[BScout]

The A, B, C, D are outputs not sources.
To create those outputs, in DADman Monitor Profile, right click on an open space outside of any monitoring already setup and select the option to "Add Monitor". In the EuCon column, you can assign what Monitor it goes to (A, B, C, D).

Create this Monitor just like your main (adding outputs and sources -- sources will allow you to use already pre-defined sources like ones already set up for your main monitoring section.)

From the Control app, if you click on the A/B/C/D button next to the knob (A/B/C/D left column), the center section will let you choose what you want the source for that monitor to be. It shows those from the inputs you setup earlier for that monitor output.

As for different EQs for the same output setup; not possible. The EQ is attached to the output (I mean this as the "monitoring output setup" -- not physical output channel.) You can duplicate the output in the same monitoring , and give them different EQs. Just do a "new set" and then give that output setup the same physical output channels. Then you can have two diff eq setups going to the same physical output channels. This would probably give you what you want.

If you have the MTRX studio, each headphone out is its own output so you could give them different EQs.

Input/sources do not have EQ attached to them; only outputs.