Allowing to set a minimum, maximum, or total amount of checkboxes that need to be selected. For example, we have faculty who need to select 12 workdays outside of the scheduled semester dates. We want to set it up that we have more than 12 checkboxes available to check, but they have to check 12 of them. Currently, it is set up that they are not required, since we would not want them checking all of the boxes.