The CreateWebSurface method in the Editor.EditorUtility class is a static method that allows you to create an unlimited web surface. This method returns an instance of Sandbox.WebSurface, which can be used to display web content within the Sandbox environment.
To use the CreateWebSurface method, simply call it from the Editor.EditorUtility class. Since it is a static method, you do not need to instantiate the class to use it. The method does not require any parameters.
// Example of using CreateWebSurface
Sandbox.WebSurface webSurface = Editor.EditorUtility.CreateWebSurface();
// Use the webSurface instance to load a URL or perform other operations
webSurface.LoadUrl("https://example.com");