Having to change output to hear external keyboard

Hello. I have the minifuse 4. I currently have my studio monitors connected to it and have it connected via USB to my iMac. I have to open the MiniFuse Control Center and select the output 1-2 button in order to hear sounds from my external keyboard. I was under the impression that I could connect my keyboard and play sounds while hearing sounds from my computer. For example, if I want to record a track in my DAW, I’d have to change the output so I can hear the sound from my keyboard. But, I can only hear the sounds I’m recording as opposed to the drums, bass that’s playing from the DAW. Am I missing something? Is what I’m trying to do possible?

You should be able to set up a custom mix between your inputs and computer audio in MiniFuse Control Center. Check the “Creating Custom Mixes” section in the manual.