The recommended way of asking for help is through the community's forum.
If you require privacy, or have a more specific request, you can also send an e-mail to Camille (camille at osculator dot net).
Please follow these instructions:
/Applications/OSCulator.app
/Users/
<username>/Library/Application Support/OSCulator
/Users/
<username>/Library/Preferences/net.osculator.OSCulator.plist
/Users/
<username>/Library/Preferences/net.osculator.OSCulator.LSSharedFileList.plist
/Library/Application Support/OSCulator
Short answer: you should not use them manually and therefore they are not documented.
These are internal routing arguments to handle the case of bi-directional routing with message having multiple arguments.
They are used when an OSC message with at least 2 arguments are configured with two MIDI CC. When the MIDI host replies, the received message (/midi/ccXY/Z) only have 1 argument. Therefore, in order to send the correct message back to the OSC device, we must build a OSC routing for each MIDI CC that will use and/or update the current values of the OSC device.