AppGameKit has a scene editor.......

I watched some videos. AppGameKit is a so popular language. It has an internal scene editor now. The scene editor looks useful, convenient and versatile. 
www.youtube.com/watch?v=UIObKXckckY
www.youtube.com/watch?v=ShQjV_tT3k0
www.youtube.com/watch?v=O0eDVD-wpc8