Required hold duration in seconds.
This numeric value (float) belongs to FInteractionRuntimeMultiParticipantInputSettings under InteractionRuntime|MultiParticipant.
Designers configure this value in the owning asset or object details panel, while Blueprint logic can read the resolved value at runtime.
UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "InteractionRuntime|MultiParticipant", meta = (ClampMin = "0.01"))
float HoldDurationSeconds = 0.35f;