Instructions for using Shift and Capslock.

Answer: After many tests on the MAC, because each keyboard is independent in the system setting, the following operations cannot be completed: when the foot switch is pressed (the foot switch is set to CapsLock, that is, the caps lock key, or the Shift key) ), the upper and lower case function cannot be used on other keyboards, and can only be used as a function to switch input methods. The above operations can be completed normally on Win.