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World Partition Inspector

Module: Design · Category: LevelDesign · Tool ID: WorldPartitionInspector

Analyzes the active level’s World Partition setup. Lists every actor with its data-layer assignments, spatial-loading state, and class. Lists every data layer with its type (Runtime / Editor) and actor count. Detects HLOD layers, flags actors missing data-layer assignments, and exports the audit as CSV.

Screenshot 01 — Hero shot — Inspector open after a scan, both lists populated, summary line showing total actors / spatial split / missing-layer count.


  • Auditing an open-world level — confirming every actor has the data layer it should
  • Pre-cook validation — finding actors missing a layer assignment (a common World Partition bug)
  • Inheriting an open-world project — getting an objective view of what’s spatially loaded vs. always loaded
  • Reporting partition health to the team via CSV
  • Don’t use this on non-WP levels — when the active level isn’t World-Partitioned, the report is mostly empty
  • Don’t expect this to author data layers — that’s UE’s Data Layers panel; this audits

  1. Open the EQLabs Hub and search for World Partition (or browse to Design → LevelDesign)
  2. Click the tool card
  3. Make sure the WP level you want to audit is open
  4. Click Inspect

SectionWhat it does
Inspect buttonWalks the active level’s World Partition
Export CSVSaves the audit as CSV
SummaryTotal actors / spatially loaded / non-spatial / missing layer count / HLOD layers detected
Actors listPer-actor row: name, class, data layer names, spatial flag, missing-layer flag, issue text
Data Layers listPer-layer row: name, type, actor count, visible flag, runtime flag

Single-click an actor row to select it in the level. Double-click to fly the camera to it.


  1. Open the WP level
  2. Click Inspect
  3. Walk the actor list — sort by missing-layer flag to find unassigned actors first
  4. Cross-reference with the Data Layers list to see which layers are over- or under-populated
  5. Optionally Export CSV for team review

No persisted settings beyond standard tool framework.

Settings file: [Project]/Saved/EQLabs/Settings/WorldPartitionInspector.json


  • In-panel results — actors + data layers lists
  • CSV export — full audit
  • No edits — read-only

  • A “missing data layer” can be intentional — global / always-loaded actors don’t need one. Read the warning before fixing
  • HLOD layer detection is presence-based — flags whether HLOD layers exist, not whether they’re correctly built
  • Single-click selects in viewport; double-click flies the camera


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