How can I add a "check all that apply" option on the Multiple Choice field?

How do I add a question that lets you check “all that apply”? I’ve tried both the single choice and multiple choice Quick Elements in Jotform 4 but neither works.

Selecting more than one option only applies to the Multiple Choice fields (checkboxes). The Single Choice field (radio button) will always accept one option selected.

Although there is no innate way to achieve this on our Multiple Choice field, you may use a Widget that was specifically designed with this function.

https://widgets.jotform.com/widget/select_all

Related guide: How-to-Add-a-Widget-to-your-Form

There's another alternative by using Conditions but I'd like you to check the widget above first since it's simpler and more convenient. Give it a spin and let us know if you'd need more help.