To configure audio mapping in uncompressed sources please follow the below steps.
Navigate to Sources → Configuration and select the desired 2110 channel and double click to edit the configuration.
...
2. In the “Mapping“ field fill in the audio input.
...
3. Click on submit to save.
Display Language Code
To display language code, you can add 3 letters in the following format: 1:2:[1,2]:eng,2:2:[3,4]:man
...
Navigate to Sources → Audio Statistics. Language code displayed here.
...
Navigate to Output → Tile editor → Audio Meter → variable #2
...