smoke.js
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Limitation to 3 quiz buttons
Just simply replace button_1, button_2, button_3 with array:
buttons: [
{value : '11', name: "Option 33"},
{value : '20', name: "Option 66"},
{value : '61', name: "Option 91"},
{value : '42', name: "Option 55"},
{value : '99', name: "Option 42"}
]
callback handler returns reference to the button. value can be accessed by reading data-quiz-value property