How do I turn off an instrument?

Whenever I try to play a specific instrument on my list using my midi keyboard it plays all of them simultaneously. How do I stop this?

Are the instruments set to listen on a specific MIDI input?

Ah, I just encountered and fixed this issue! So on the MIDI tab of your instrument, you can set a specific MIDI channel for that instrument. I have 8 instruments that I activate via my keyboard, each on their own MIDI channel. Additionally, you can make it so that when you use that instrument it routes the output to a specific track.

Example, I have my kicks operating on MIDI Ch 1, and when I press a Key it only routes to my KICK track!

Thank you very much!