All the buttons, plus the four directions of the DPad, can be set to any of the following actions:
Emergency Stop 
Stops all locos controlled by the device only.
 
Stop
 
Forward
 
Reverse
 
Forward/Reverse Toggle
 
Increase Speed
 
Decrease Speed
 
Limit Speed
 
Pause
 
Next Throttle
 
Function 00/Light
 
Function 01/Bell 
Note that this only sends the function to the loco/consist, and will not play the IPLS Bell, unless the F1 and F2 activate Bell and Horn? preference is set to do so.
 
Function 02/Horn 
Note that this only sends the function to the loco/consist, and will not play the IPLS Horn, unless the F1 and F2 activate Bell and Horn? preference is set to do so.
 
Function 03
 
Function 04
 
Function 05
 
Function 06
 
Function 07
 
Function 08
 
Function 09
 
Function 10
 
Function 11
 
Function 12
 
Function 13
 
Function 14
 
Function 15
 
Function 16
 
Function 17
 
Function 18
 
Function 19
 
Function 20
 
Function 21
 
Function 22
 
Function 23
 
Function 24
 
Function 25
 
Function 26
 
Function 27
 
Function 28
 
Mute (IPLS) 
‘In Phone Loco sounds’ must be enabled for the current throttle Throttle 1 Loco Sounds or Throttle 2 Loco Sounds
 
Bell (IPLS) 
‘In Phone Loco sounds’ must be enabled for the current throttle Throttle 1 Loco Sounds or Throttle 2 Loco Sounds
 
Horn (IPLS) 
‘In Phone Loco sounds’ must be enabled for the current throttle Throttle 1 Loco Sounds or Throttle 2 Loco Sounds
 
Horn Short (IPLS) 
‘In Phone Loco sounds’ must be enabled for the current throttle Throttle 1 Loco Sounds or Throttle 2 Loco Sounds
 
Speak Current Speed 
‘Text to Speech (TTS)’ Voice Response preference must be enabled for this to work