Many multi-select questions require a None of the above button. This button should behave differently from the other options - it should not only be selected when clicked, but should also deselect all other options. Fortunately, there’s an easy way to add this functionality in Embeddables.
This feature is not yet implemented in the Builder UI. For now, you will need to add single_select: true to the button in the component JSON.
1

Select the component and open the button settings

  • Select the Option Selector component.
  • Navigate to the Options sidebar.
  • Click the Edit icon button next to the “None of the above” button.
2

Set the button to be a 'single select' option

  • Check the option called “Single select”.
  • This makes the button single-select only, meaning that once it’s selected, all of the other buttons are deselected.