Build Template to Accept Configurable Text from external file

Yes! instead of targeting the text box directly, I have it setting a Storyline variable, and then I have that variable populate the text box through the Storyline UI (%storylineVariable%).

Here's how that looks from the outset:

On my main slide, there are 20-some buttons, and my external json config file has the same number of objects with key:value parameters, like this (this is a project for our Black & African American Diversity Network):

"a1": {
   "cat": "Educate Yourself",
   "title": "Systemic Racism Explained",
   "desc": "Here's where the description goes"
},
"a2": {
   "cat": "Educate Yourself",
   "title": "Moving Beyond Diversity Toward Racial Equity",
   "desc": "Here's another description"
},

In my scenario, the configurable text is destined for a text box on a layer - so I run this function (trigger Execute Javascript) when the user clicks the button that also displays the layer. When that button is clicked, I set a Javascript variable to the object name (e.g. "a1"). This is then passed into my function as the activity parameter:

function popData(activity) {
 var player = GetPlayer();
 $.ajax('/DN/BAADN/dnConfig.json', 
 {
   dataType: 'json', // type of response data
   timeout: 500, // timeout milliseconds
   success: function (data,status,xhr) { // success callback function
     player.SetVar("category",data[activity].cat); 
     player.SetVar("taskTitle",data[activity].title);
     player.SetVar("taskDesc",data[activity].desc);

   },
   error: function (jqXhr, textStatus, errorMessage) { // error callback 
   $('#one').append('Error: ' + errorMessage);
   }
 });
}