Instance (and copy) Examples

[cadop]

The explanation on this variant example sounds like instances or references.

https://docs.omniverse.nvidia.com/dev-guide/latest/programmer_ref/usd/variant-sets/author-variant-data.html
https://docs.omniverse.nvidia.com/dev-guide/latest/programmer_ref/usd/variant-sets/create-variant-set.html
https://openusd.org/docs/Authoring-Variants.html

There is examples for references: https://docs.omniverse.nvidia.com/dev-guide/latest/programmer_ref/usd/references-payloads/add-reference.html

But nothing for instances. Which are said to be A light-weight and less manipulable copy of a prim.

Unless something is missing from the references example, it doesn't actually copy the reference prim, it just creates an xform. For example, making a cube mesh as the internal target path, the example simply makes xforms.

So generally would be nice to have a copy/duplicate example, and if the best practice is to use instances, than put that next to the references and payloads example.