We uploaded a small Demo Scene which can be loaded into the TXna Scene editor to demonstrate some editor features: https://sourceforge.net/projects/txnagameengine/files/
In order to load the scene in a game project it is enough to create a new class inheriting from scene and inside the OnInitialize() override add:
//-------------------------------
// Load scene from Xml project
//-------------------------------
string testPath = @"C:\Path_to_saved_scene\";
XmlParser.LoadScene(engine, this, testPath + "DemoScene.xml");
Happy downloading
Riki