You might try this:

Open the Hierarchy Editor (HE) - (and enable "Cameras" / "Lights" as necessary)
[menu] >>> "Window" >>> **"Hierarchy Editor"

*Select the object, camera, or light you want to parent.

Click (on it) and Drag the object* to the new "parent"**

**cheers,
dr geep
;=]

OOPs!  Sorry Phil ... xpost ...

Remember ... "With Poser, all things are possible, and poseable!"

cheers,

dr geep ... :o]

edited 10/5/2019