1/15/2019 the arm STRETCHES!

So I got the arm to stretch!!!! after i figured out that the locater that the IK arm distance wasnt actually moving with the handle once i did that it stretched with the Node editor. however it was stretching both ways.

So i ended up plugging in that script and it it works and bends and i am happy. also in the video it didnt pick up the window for expression editor but i left in in.