Adds subheaders between response options. Supports radio selects, checkbox selects, constant sums, and non-drag-and-drop rankings.
- Lines 5-8 of the footer must be updated with the nature of the subheaders. For each subheader, the code must know the position of the first item in the category, the position of the last item in the category, and the subheader HTML.
- This code can be copy-and-pasted into a constant sum or ranking question to achieve the same effect.
- Constructed lists are supported. If a constructed list is used, items that share a subheader must appear besides each other in the constructed list.