test.js

function jsInsertTable(rows, cols, id) {
    TXTextControl.tables.add(rows, cols, id, function(e) {
      if (e === true) { // if added
        TXTextControl.tables.getItem(function(table) {
          table.cells.forEach(function(cell) {

            cell.setText("Cell text");

          });
        }, null, 10);
      }
    })
}

function jsAddMergeField(text, name) {
    TXTextControl.applicationFields.add(
		TXTextControl.ApplicationFieldFormat.MSWord, 
		"MERGEFIELD", 
		text, 
		[name], 
		af => {
			var highlightColor = "rgba(9, 165, 2, 0.3)";
			var highlightMode = TXTextControl.HighlightMode.Always;
	
			af.setHighlightColor(highlightColor);
			af.setHighlightMode(highlightMode);
            af.setDoubledInputPosition(true);
		}
	);
}

function jsSetMergeFieldText(text) {
    TXTextControl.applicationFields.forEach(function(appField) { 
        appField.setText(text);
    });
}