madsledder,
The PCV does have the ability to store a second Nitrous Map for your application.
To enable this, you will need to solder two pigtail wires into the two wires on the Nitrous activation button. On the front of the PCV you will see a series of holes known as the expansion/terminal strip. Insert these two pigtail wires into the two holes nearest where the harness exits the enclosure.
Then, in your control center software, access Power Commander Tools > Configure > Feature Enables and Input Selections. Check the box next to "Map Switch" and you're ready to build the fuel addition map.
Now anytime you press the nitrous button, the circuit will be completed thus switching maps inside the PCV to fuel for nitrous.
Adding a second fuel controller is not necessary as the Power Commander will fit all of your desired needs to control fueling.
~T.J.