This board is mostly for 3D modelling and animation discussion. You'd probably find more answers in one of the programming boards, since you are asking whether you can have multiple cameras displaying to the screen. If you are using Dark GDK, I can tell you to use the dbSetCameraView for each camera to specify different drawing areas of the screen. I'm not familiar with other TGC languages, but I'm sure there are similar commands for DBC and DBPro.
I have CDO. It's like OCD, but the letters are in alphabetical order, like they should be.