Project Settings
From the Edit > Project Settings window, find the Actor Pools section.

Configuration Options​
| Setting | Description | Default |
|---|---|---|
Default Settings | Used when creating an FNActorPool without providing a FNActorPoolSettings; this often occurs when you request a specific AActor without having already created an FNActorPool for it and follows that prescribed behaviour. | FNActorPoolSettings |
Always Create | An array of UNActorPoolSet that will always have their corresponding FNActorPool created when a world is loaded. | TArray<UNActorPoolSet> |
Ignore World Prefixes | Prefixes of worlds to be ignored when automatically populating pools, for example DEV_. | TArray<FString> |
Returned Unknown Actor | What should happen when an AActor is returned through the UNActorPoolSubsystem which has no FNActorPool associated to it. | ENActorPoolUnknownBehaviour::Destroy |