How to enable DetourCrowds?

Calm down. It means look at the class not that it should just work.

.cpp


#include "AIModulePrivate.h"
#include "DetourCrowdAIController.h"
#include "Navigation/CrowdFollowingComponent.h"

ADetourCrowdAIController::ADetourCrowdAIController(const FObjectInitializer& ObjectInitializer)
	: Super(ObjectInitializer.SetDefaultSubobjectClass<UCrowdFollowingComponent>(TEXT("PathFollowingComponent")))
{

}

.h



#pragma once

#include "AIController.h"
#include "DetourCrowdAIController.generated.h"

UCLASS()
class ADetourCrowdAIController : public AAIController
{
	GENERATED_BODY()
public:
	ADetourCrowdAIController(const FObjectInitializer& ObjectInitializer);
};