Mackie MCUPro + 2 side cars. How to Set Up

I just installed Cubase 8 and I need to reinstall my Mackie MCU pro and my two sidecars ,…I am having a hard time reinstalling it because I do not remember how to do it ,…can somebody please give me step-by-step directions on how to do it ,… I know you go to device manager , then you go to remote interfaces and add all three ,…I have done that but I do not know where to send them on the MIDI IN / MIDI. OUT I see no MCU drop downs. What step smile I missing