Pair with/enable bluetooth before login
I have a bluetooth mouse and keyboard and I use them a lot.
The problem is, that every time when I am in the login page, I can't use my bluetooth keyboard & mouse and I am forced to use the keyboard and the trackpad on my MacBook to enter my password.
After I log in, Bluetooth will be enabled and then I can use bluetooth mouse and keyboard. But I still want to use them BEFORE login.
So that left me wondering, how can I turn on Bluetooth before logging in on Mac?