'Data Layer - HLOD' option missing?

Development World Creation
1

Hi, I just wanted to ask a quick question.

This option here:

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World Partition - Hierarchical Level of Detail in Unreal Engine | Unreal Engine 5.5 Documentation | Epic Developer Community

Seems to be missing? What am I doing wrong exactly? Has this been depreciated/what is the workflow for this now?

This is from 5.5 (5.4 and so on downwards, it seems to be missing too)

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Just wondering what I am doing wrong here?

Thank you.