Can Adobe Illustrator scripting run functions asynchronically?

I have made a script for Adobe Illustrator. But I have a problem: I need some functions to be applied step-by-step (asynchronically). These functions are: prepareToScript, selectTextObjects, mergeTextObjects, moveNamesToNewLayer or leaveNamesOnCurrentLayer. Is it possible to do that? Here is the part of the code:

function runThisScript() {

  var doc = app.activeDocument;

    doc.selection = null;
    var layer = doc.activeLayer;

    var layer = doc.layers.getByName("Layer 1");

    doc.activeLayer = layer;

    prepareToScript();
    selectTextObjects();
    mergeTextObjects();

  if (processAllChk.value) {
    processAllNames();
    app.preferences.setStringPreference(allKey, "true");
  }

  if (moveNamesChk.value) {
    moveNamesToNewLayer();
  } else {
    if (!wasTrans) {
        leaveNamesOnCurrentLayer();
    }
    moveNamesToNewLayer();
  }
}

I have tried callbacks and awaits. Either I did something wrong or they don’t work in Adobe Illustrator.