Canon EOS-1D X Mark III Advanced User's Manual page 653

(1) Still photo shooting button
(2) Movie shooting button
(3) Multi-function lock icon
(4) Shutter button
(5) MF toggle button
(6) HDR shooting
(7) Image quality
(8) Browser Remote connection
(9) Battery level
(10) Drive mode
(11) Available shots
(12) AF operation
(13) AF button
(14) Shooting mode
(15) Shutter speed
(16) Aperture value
(17) Exposure compensation
(18) ISO speed
(19) Picture Style
(20) White balance
(21) Color temperature
(22) White balance correction
(23) AF method
(24) Metering mode
(25) MF button
(26) Live View shooting button
(27) Live View image quality toggle button
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