Solenoid Questions

[Particle]

I would like to use more than four solenoids this year. Since this year's KOP only offers one solenoid (the Fesco 24V solenoid with 2 coils) and there are only 8 solenoid ouputs on the NI 9472 module, I'm left to ask if one of the two options below are rules-legal. Both seem to be, but I don't want to make any assumptions.

1) Can we use solenoids other than those in the KOP? R78 would seem to suggest we can use any solenoid from any source (KOP or not) so long as the parts are rated for 125 PSI working pressure.

2) Can we install more modules into the cRIO controller? If I could install a second NI 9472 module to gain another 8 24V solenoid outputs, that would let me use the Fesco solenoid found in the 2013 KOP. I've not found anything in the rulebook regarding what modules we can and can't use as well as in what quantity. R47 seems to hint that multiple solenoid modules are a possible configuration, but again it's just not explicitly stated anywhere.

Thanks