Thank you Julius. I thought that's what I was doing! Can you tell me where my code is wrong?

I would like to be able to change it like so:  "type": "select","id": "banner_type","label": "Header Type","default": "image_all_pages","options": [{ "value": "video_homepage", "label": "Video Header on Home Page Only" },{ "value": "video_all_pages",...