Question Arfoundation ARhumanbodymanager

Hi,

I'm new to unity and I have been playing around with a project that invovles the ARhumanbody manager and the ScreenSpaceJointVisualizer.cs. I have looked around in the scripts to find if I can determine which body parts to track (without success). Does anyone know where I can edit which body parts to track, for instance only the top body or the buttom body? Here is an image of how far my app is working now.

 

btw its in this piece of code in the the screenspacejointvisualizer.cs.
using (joints)
{
s_JointSet.Clear();
for (int i = joints.Length - 1; i >= 0; --i)
{
if (joints.parentIndex != -1){
UpdateRenderer(joints, i);
Console.WriteLine(joints.parentIndex);
}