Blender Text Export

Hello, I create Curve Text and then export it in glTF format. The version I am using is verge3d 2.13.0. Then I can add it to the scene with the loader. But what I want to do is to be able to change this Text whenever I want. For example, I want to make “Y” while writing “X” by default in the Text object. I can replace the geometry part of the Text I added to the scene with a new TextGeometry, but this time it loses the Curve property. There are no parameters and text in the geometry part of the Text object. How can I do that?

const loader = new v3d.GLTFLoader()
  loader.load('../../assets/newText.gltf', function(gltf) {
    console.log('gltf: ', gltf)
    var item;
    var item2;
    gltf.scene.children.forEach((x)=>{
      if (x.name === "ManText") {
        item = x
      }else if(x.name === "WomanText"){
        item2 = x
      }
    })
    console.log('item1:', item)
    console.log('item2: ', item2);

    appInstance.scene.add(item)
    appInstance.scene.add(item2)
  })