Hello all,How can I hide the multiple choice buttons for my questions? I have added some JS code so participants can respond using key presses so I don't want participants to answer by mouse-clicking on the buttons on the screen.I have tried variations of the following code but haven't been able to make it work - could someone kindly help me with this?Many thanks in advance!Qualtrics.SurveyEngine.addOnload(function(){this.hideNextButton();this.hidePreviousButton();var that = this;Event.observe(document, 'keydown', function keydownCallback(e) {var choiceID = null;switch (e.keyCode) {case 74: // 'j' was pressedchoiceID = 1;break;case 75: // 'k' was pressedchoiceID = 2;break;}if (choiceID) {Event.stopObserving(document, 'keydown', keydownCallback);that.setChoiceValue(choiceID, true);that.clickNextButton(); var v = document.getElementsByClassName('MultipleAnswer');for (i = 0; i < v.length; i++) { v[i].style.visibility = "hidden";}}});});
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