Realbasic widget similar to workflow view in automator

Is there any kind of RealBasic/Real Studio widget which looks similar to the workflow view in Automator o开发者_如何学编程r GameSalad?

Nothing out there that I know of. But the way to do it is to subclass the canvas control. I suggest you take a look at the Custom Frames example at http://homepage.mac.com/alexrestrepo/indexmain.html is it will give you some decent ideas on how to do that and have 'objects' in the canvas.