Nbminer command line batch file help

Been using T. Rex minor for quite a while on my 3 rigs but recently I was able to acquire an AMD 6600XT video card So I was forced to find a program that would run both in Nvidia and AMD video cards …. I am trying Nbminer but am having difficulty putting in command line controls for each video card. For example in Trex fan speed would be like –fan 100, 85, 95 and so on for core speed, etc…. i found the Nbminer page with commands but it was not entirely helpful.

I AM NOT comitted to Nbminer ….just need both Nvidia and AMD support.

ANY helpful advice would be very Welcome!!