WorldViz User Forum - How to use grabber tool with wand?

Hi Jeff,
I'd appreciate if you have some knowledge on how to use grabber tool with wand using ppt-tracking and wand 2014? Few more questions: What are proxy tools? What is the proxywrapper/grabberwrapper, their functions and what does the following code snippet from box stacker demo code do?

Code:

def init():

        """Initialize the demo, only called once"""

        # add grabber tools based on proxy tools

        for proxyWrapper in vizconnect.getToolsWithMode('Proxy'):

                grabberTool = tools.grabber.HandGrabber(usingPhysics=True,

                                                                                                usingSprings=True,

                                                                                                placementMode=tools.placer.MODE_MID_AIR)

                

                name = 'box_stacker_grabber_tool_based_on_'+proxyWrapper.getName()

                grabberWrapper = vizconnect.addTool(raw=grabberTool,

                                                                                        name=name,

                                                                                        make='Virtual',

                                                                                        model='Grabber')

                # parent the grabber wrapper to the proxy's parent

                grabberWrapper.setParent(proxyWrapper.getParent())

I can't find any relevant information about these things in the Vizard documentation/reference.