Optional order within a composite command group.
This numeric value (int32) belongs to FInteractionRuntimeCommandDefinition under InteractionRuntime|Composite.
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|Composite", meta = (ClampMin = "-1"))
int32 CompositeGroupOrder = INDEX_NONE;