Radio buttons allow you to choose one of several options. This script allows a choice of one option from each row and each column of a matrix of options. Selecting a radio button will remove any other entries in the same row or column.
You could use this script to order a group of items:
Rate the following in order of importance to you:
The script will also work for non-square matrices where there are fewer columns than rows. For example, you could remove the 4th and fifth columns above and request only the top three choices.