More buttons on dialog about vex HOT 2 CLOSED

vex.dialog.open({
    message: 'How would you like to procede?',
    contentCSS: { width: '600px' },
    buttons: [
        $.extend({}, vex.dialog.buttons.NO, { className: 'vex-dialog-button-primary', text: 'Checkout', click: function($vexContent, event) {
            $vexContent.data().vex.value = 'checkout';
            vex.close($vexContent.data().vex.id);
        }}),
        $.extend({}, vex.dialog.buttons.NO, { className: 'vex-dialog-button-continue-shopping', text: 'Continue shopping', click: function($vexContent, event) {
            $vexContent.data().vex.value = 'continue-shopping';
            vex.close($vexContent.data().vex.id);
        }}),
        $.extend({}, vex.dialog.buttons.NO, { text: 'View cart', click: function($vexContent, event) {
            $vexContent.data().vex.value = 'view-cart';
            vex.close($vexContent.data().vex.id);
        }})
    ],
    callback: function(value) {
        // value will be one of the following:
        // false, "checkout", "continue-shopping", "view-cart"
        console.log('Choice', value);
    }
});