Update value in a spreadsheet sidebar when next row is selected in table
问题 To facilitate the annotation of audio files in a Google spreadsheet, I'd like to implement an audio player in the sidebar which automatically plays the audio file mentioned as URL in the row of a table. After listening and entering some date in this row, I'd like to move to the next row and do the same. Thus, the URL to the audio file should be updated whenever I select a new row and the whole process should be fast, too, in order to listen quickly to one sound file after the other. I've