I have a 2-option MC question inside a L&M block. If participants click the green button, I want to show them (in page) a payout (e.g., you win $4 or $0). I have a counter (embedded data set via JS) that records each time someone clicks the green button. 

What I need: The first time someone clicks the green button then display the field ${e://Field/g1}, the second time they click the green button then display the field ${e://Field/g2}, …

Right now, I’m trying to accomplish this in two steps: 

1. Actually displaying the field ${e://Field/current_payout_green} in the survey
2. Trying to update that field each time the green button is clicked via the following JS:

Qualtrics.SurveyEngine.addOnReady(function() {
      var currentGreenCounter = parseInt("${e://Field/green_counter}", 10);

if(jQuery("#"+this.questionId+" input"choiceid='2']")) {

	// increment counter 
	currentGreenCounter += 1;
	Qualtrics.SurveyEngine.setEmbeddedData('green_counter', currentGreenCounter);

	//Update the display embedded data
	var updated_visual_green = "${e://Field/g" + currentGreenCounter+"}";
	Qualtrics.SurveyEngine.setEmbeddedData('current_payout_green', updated_visual_green);

}

});

(Note: Prior to this focal block, I initialize the ED field `current_payout_green` as `${e://Field/g1}`)

This works the first time the green button is clicked (because I’ve hard-coded this to be ${e://Field/g1}) but does not work any time thereafter -- the field is blank.

How can I use JS to update the ED field `current_payout_green` upon clicking the green button (option 2) -- effectively setting it to `${e://Field/g" + currentGreenCounter+"}`?

Thanks!