How to programmatically add a component to an actor blueprint within an Editor Plugin?

[Roy_Wierer.Seda145]

@mjrmls

My second attempt was to do it in C++ rather than using blueprints. However I can’t find any way to add a component from a specific class to an already exisiting actor.

Example for a HUD class adding a SceneComponent:

	USceneComponent* WidgetComponentRoot = Cast<USceneComponent>(AddComponentByClass(USceneComponent::StaticClass(), true, FTransform::Identity, false));
	WidgetComponentRoot->AttachToComponent(GetDefaultAttachComponent(), FAttachmentTransformRules(EAttachmentRule::SnapToTarget, EAttachmentRule::SnapToTarget, EAttachmentRule::SnapToTarget, true), NAME_None);

Example how to add an ActorComponent from an ActorComponent to its owning AActor:

UChildActorComponent* CAGrabSlot = Cast<UChildActorComponent>(Owner->AddComponentByClass(UChildActorComponent::StaticClass(), false, FTransform::Identity, false));