Batch update padding on existing passes

Is there any way to update the padding on existing passes without having to do them all manually? I've set the options for new passes, but I've got a lot of passes (over 100) and just wondering if I can batch update them all at once, or do I need to do them each individually?

I dont think the GUI has a way to do this, but if you have scripting skills you could write one to enumerate the passes and change them that way.