Logitech HARMONY REMOTE 600 Series User Manual page 16

Naming Conventions
When naming a command for which there is no default name on the Language page, use the following
naming conventions to make button assignment and sharing infrared commands easier:
Do not use spaces or other special characters such as /, & or * in the name.
Capitalize the start of words (e.g. NextDisc, ModeDigital).
Start the command name with its main function (e.g. VolumeRearUp, VolumeRearDown,
VolumeFrontUp, VolumeFrontDown). This helps group related commands in lists.
For infrared commands that select inputs (e.g. on a stereo receiver), start with the prefix
"Input". Do not name the input based on what you have connected to your device, rather name
it based on what it is called on the front of the device, or on the remote control (e.g. InputAux,
InputVideo1, InputTape, InputDVD, InputVCR).