Is there any way to edit this information basically in a spreadsheet? It would just be really nice to basically go down the list updating fields. So I know that I want to set the type for fields. Rather than opening each param individually and setting the type, I could just work my way down the rows setting the values. Even an option to export/import to a CSV would be wonderful!
Topic on Extension talk:TemplateData
I'm not aware of any existing script for this, but the end result is standard JSON, so it is theoretically possible.