GUI: Updating an edittext type box

I would have thought so too. I tried a lot of attributes of the edit text box. But it seems that after the window is generated, the edittext field doesn't keep its name, so I can't add to it or change it.

I'm overall not really sure how ExtendScript works. In a browser and pure JS, the object would retain its name, right? Does a window, in the session, retain the name of objects?

Here's the code that creates the edittext area:

for (i = 0; i < countLayers ; i++) {
    var layerName = myLayer.item(i).name;
    layerNames.push(layerName);
    };
 utilityGroupThree.add ("statictext",undefined,"Layers:");
   var myTextLayers = utilityGroupThree.add("edittext", undefined,layerNames);
    myTextLayers.characters = 10; 
   
    //updateLayerInfo
var setLayersCheckbtn = utilityGroupThree.add('button',undefined,'Check Layers');
        setLayersCheckbtn.onClick = function() { updateLayerInfo()};    
    
var setLayersbtn = utilityGroupOne.add('button',undefined,'Set Layers ');
        setLayersbtn.onClick = function() { checkLayer()};

Here's the code that is supposed to recheck the layer names and report them (called from the "Check Layers" button):

function updateLayerInfo () {
    var myDocument = app.documents.item(0);
    var myLayer = myDocument.layers;
    var countLayers = myLayer.length;
var layerNames = new Array( );
    
   for (i = 0; i < countLayers ; i++) {
    var layerName = myLayer.item(i).name;
    layerNames.push(layerName);
    };
alert (layerNames); 
myTextLayers.text = layerNames;
//windowClose
    };