The code and compound are open, you or someone can fix it or make own based on it.
I don't have any desire make stuff for softimage anymore, sorry.
I tried it out for a few hours, reading the code and trying things out but I came to the conclusion that it isnt worth my time to continue. It works - barely - except if your rig is at a wrong scale or you click in the wrong spot. I have no idea how you got such smooth results in your video because Ive tried it on a few setups with the same results.