This gist shows you how to make a custom Keen IO funnel query using raw counts for each step (no actor property required)

gistfile1.js

Keen.onChartsReady(function(){

  var visitors = new Keen.Metric("visited_form", {
      analysisType: "count"
  });

  var formsStarted = new Keen.Metric("form_started", {
      analysisType: "count"
  });

  var formsSubmitted = new Keen.Metric("form_submitted", {
      analysisType: "count"
  });

  buildFunnel(visitors, "Visit the form", formsStarted, "Start the form", formsSubmitted, "Submit the form", "Application Form Completions")

});

function buildFunnel(metric1, label1, metric2, label2, metric3, label3, title) {

  var results = []

  metric1.getResponse(function(response) { // Get the count for the first step
    results[0] = response.result
    drawFunnel(results)                
  });
  
  metric2.getResponse(function(response) { // Get the count for the second step
    results[1] = response.result
    drawFunnel(results)                
  });
    
  metric3.getResponse(function(response) { // Get the count for the third step
    results[2] = response.result
    drawFunnel(results)
  });

  function drawFunnel(arrayOfSteps) {

    if (results.length >= 3) {
      
      var formattedResult = 
      
        {
            "result":[
                arrayOfSteps[0],
                arrayOfSteps[1],
                arrayOfSteps[2]
            ],
            "steps":[
                {
                   "event_collection": label1,
                   "actor_property":"none"
                },
                {
                   "event_collection": label2,
                   "actor_property":"none"
                },
                {
                   "event_collection": label3,
                   "actor_property":"none"
                }
            ]
        }

      var s1 = new Keen.Step("placeholder");
      var s2 = new Keen.Step("placeholder");
      var s3 = new Keen.Step("placeholder");

      var appFunnel = new Keen.Funnel([s1, s2, s3], {});

      //Create a Funnel Chart visualization for that funnel.
      var appFunnelChart = new Keen.FunnelChart(appFunnel, {
        height: 300,
        width: 900,
        title: title,
        color: "#00afd7"  // "#afd700","#f35757","#d700af", "#6f79a2", "#d79400", "#43d700"
      });
      
      appFunnelChart.draw(document.getElementById("funnel"), formattedResult);
    
    }
    else {
      console.log("waiting for more queries to finish")
    }
  }
}