;) No probably not. Try using Copy List Items with Interleave Lists and if that works just do the same 4x (connected for one corner). Splitting the 4 corners would allow you to set different colors for each corner f.e. !?
Not sure where you hang, I don't have a Kinect or that kind of stuff but if you already have your skeleton and you want to create 4 different lines connected to the borders what about something as the composition below ? Perhaps it would need some Allow changes or some Hold Nodes but try that.