Use Controller as Grabing tool

[Patrick]

Hello,
im trying to use the controller as a tracker.
the basic idea is i want to move the right/left arm with a controller to grab things and replace them in my 3d world.
My program currently runs via a oculus rift dk2 display and has the dk2 tracker to move around in the world.
What i am basicly aiming for is to add an avatar whos arm i can move with the controller. But all i found was just the input which reacts to my controller orders but i cant connect to for example the left arm of my "head and arms" avatar cause you can only connect trackers to body parts of avatars, as it seems.
I dont want to create a transport in via i want to controll a body part of my avatar to prevent confusions.
So i assume i have to create a new tracker right? do i have to use an merged tracker and give him the Xbox settings? if thats the case how do i setup that merge tracker? or am i completely wrong and i have to do sth completely different?

Thanks in advance
Patrick