Root note on my piano should b c3 or c2

Im new to music production and need help with setting my keyboard to middle c. I have a m32 komplete kontrol.

Ok, what you can try is using “FL Studio Mode”…if you click on the top settings menu, then “Note Settings” and turn “FL Studio Mode: On” by clicking it.

Check the image below. This will shift SubLab’s center on the keyboard. Let me know if you need any further help!