Hello,
I have a (noob) question. I exported/imported my CC3 model to Unity 2019.3 as shown in the tutoral. Everything works fine this far. 
Now i wanted to add an Object to the character via Animation_Rigging. 
My problem is, that i don´t see all the upper body parts under the CC_Base_BoneRoot. Only the lower Body Parts are shown in the Hirachey (CC_Base_Hip).

See also Screenshot. 

My question: how do i "reveal" the upper body parts (e.g. Hands, fingers, arms ect.) in the Hirachy view?

Sorry, if this is a noob question.

Thank you! 
Maria