Click 
(Record or Upload) in the Title column for the desired row.
In the Sections & Passages tab, you can choose to display Publishing rows. When they are displayed, the Title column can contain book names, alternate names, movement titles, section titles and chapter numbers. You can upload an audio recording into each of these rows while they are displayed.
If you will record new audio content, see Record Title column contents.
You need to have audio files to upload that are .mp3, .m4a, .wav or .ogg format.
You need speakers or a headset to hear the audio.
The steps will be similar for each of the rows.
Click (Record or Upload) in the Title column for the desired row.
The Provide audio dialog box opens.
Click the Upload tab.
Drag and drop the audio file into the box, or click the box and browse for the file.
Click Upload.
In that row, click 
(Play) to hear the audio to make sure you uploaded the correct audio file.
If necessary upload another file.
Do the steps above again for another row, as desired.