To customize them, select the Start button, and then select Settings > Devices. For the keyboard, select Typing. For the mouse, select Mouse & touchpad.
Optional accessory: Surface Ergonomic Keyboard
Surface Ergonomic Keyboard is the ideal combination of design and function. Its keytop geometry, split space bar, and naturally arched shape help protect you from wrist strain, improve your typing form, and speed your typing.
To pair it with your Surface Studio model, press and hold the pairing button for 5-7 seconds, then let the button go. The light above the Up Arrow key will blink. This makes the keyboard discoverable. The pairing button is on the bottom of the keyboard next to the battery cover.
On your PC, select the Start button, then select Settings > Devices > Bluetooth & other devices.
Make sure Bluetooth is on, then select Add Bluetooth or other device > Bluetooth. Choose Surface Ergonomic Keyboard in the list of devices. Follow any other instructions if they appear, then select Done.
Surface Ergonomic Keyboard is sold separately.