GL Allocation POV Functions
Summary
How to use functions in the POVContent
Hi
I have checked the documentation and white paper. However, I am still unclear regarding use of Functions in the POV. 
I understand these functions are available 
@Level0Descendant
@Sibling
@UDA
@Attribute
But what is the purpose and how does it work ?
Many thanks
Thien
Version
20C
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