create secondary rig
after this rig ,we may like to add a secondary rig to it,I choosed the 'hand_|limbRig' element for secondary rig by right mouse button marking menu
a secondary rig AE window will be embedded to display area of HZrig main UI
select 3 transform nodes,this bendRigSecond will attach to these nodes ,and how many joints in bendRig can be choose unlimited,I left it 6 ,apply it
this is final view of 'bendRigSecond' above , it's same way to create the waveRigSecond,just some different option. So I just show you the AE window here
--------------------------------------------------------------------------------------------