Zisis Tsioumaras

Are you using the `File.WriteAllText("License.lic", license.ToString(), Encoding.UTF8);` way to save the license to a file? If so try the second one, ie: ` using (var xmlWriter = System.Xml.XmlWriter.Create(filePath)) { license.Save(xmlWriter);...

You may use [custom icons](https://www.ag-grid.com/angular-grid/custom-icons/) to change the icon in the AgGroupRender and the _innerRenderer_ of the _cellRendererParams_ to alter the functionality.