Below is a screenshot of a MIDI track header I borrowed from Music Creator online documentation here:
https://www.cakewalk.com/Documentation?product=Music%20Creator%206%20Touch&language=3&help=Playback.16.html 
You need two tracks like this one. The
Output of both would be assigned to whatever hardware MIDI OUT the RW is on (I gather is has both USB MIDI and DIN connections). The output
Channel dropdown can remain at 'None' for the Bass track because your keyboard is already sending on channel 1. But the Channel on the Drums track needs to be set to 10 so that the incoming/recorded notes that have with channel 1 'embedded' in the Note On messages will be re-written to 10 on the fly. This incurs no significant processing cost, so don't worry about that.
The screenshot show the
Input set to AllInputsOmni; I recommend you change this to channel 1 of the specific MIDI IN port your keyboard is on.
I assume you have Always Echo Current MIDI Track enabled (the default) in preferences, so whatever track has focus will automatically echo MIDI to the RW (the button labeled 'i' in the screenshot will light up with an 'A' in it for 'auto-echo').
Then, if you want to be able to input monitor and record the output of the RW, you need an audio track in Music Creator with input assigned to whichever audio input(s) the RW is connected to on your audio interface, and Input Echo on that track to hear the output of the RW echoed back out to your monitors.
Hope that helps.