Cara,
I was able to change the text for all options in the view to the same thing using the following:
//Change link text "add a new option"
$(document).on('knack-view-render.view_322', function(event, view, data) {
$('.kn-add-option').text('Add an unlisted option');
});
I couldn't figure out how to do individual changes for more than one "Add a new option" but this works for me, it changes all of them to the same thing. Hope this helps.
Chris.