True when this participant is the initiator for the route.
This boolean flag (bool) belongs to FInteractionRuntimeMultiParticipantParticipantEvent under InteractionRuntime|MultiParticipant.
Blueprint or editor workflows can write this value when constructing, overriding, or customizing the owning object.
UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "InteractionRuntime|MultiParticipant")
bool bInitiatorParticipant = false;