First absolute visible surface index, e.g., debug pagination ranges.
This numeric value (int32) belongs to FInteractionRuntimeResolvedSurface under InteractionRuntime.
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")
int32 VisibleStart = 0;