Control programming code descriptions

When programing and viewing the pre-set lists, I don’t know what symbols like C2, C1, B2, B1, T2 etc are referring to? Is there a description of these codes and what they are indicating. I have the Saitek Flight Control Yoke, Throttle and Rudder Pedal system, which have been preset by Microsoft, and I have no idea what these symbols are referring to.

In control options on the left you can search by input. Click in there and then press a button on joystick. Hopefully that can help you see which buttons map to what.