diff --git a/Source/StudyFrameworkPlugin/Private/HUD/SFHUDWidget.cpp b/Source/StudyFrameworkPlugin/Private/HUD/SFHUDWidget.cpp
index 703778d2347d12b4942e73c17b8b660bde6b9b8c..59408cfd1188ee136caa24478abb99947e3c9d75 100644
--- a/Source/StudyFrameworkPlugin/Private/HUD/SFHUDWidget.cpp
+++ b/Source/StudyFrameworkPlugin/Private/HUD/SFHUDWidget.cpp
@@ -5,6 +5,7 @@
 
 #include "Help/SFUtils.h"
 #include "Logging/SFLoggingUtils.h"
+#include <Kismet/KismetMathLibrary.h>
 
 
 USFHUDWidget::USFHUDWidget(const FObjectInitializer& ObjectInitializer) : Super(ObjectInitializer)
@@ -54,6 +55,20 @@ void USFHUDWidget::SetStatus(const FString& Text)
 	StatusTextBox->SetText(FText::FromString(FString(TEXT("Status: ")) + Text));
 }
 
+void USFHUDWidget::SetbInDebugMode(bool InDebugMode) {
+	bInDebugMode = InDebugMode;
+	if (bInDebugModeTextBox){
+		if (bInDebugMode) {
+			bInDebugModeTextBox->SetText(FText::FromString("DEBUG MODE ||"));
+			bInDebugModeTextBox->SetColorAndOpacity(UKismetMathLibrary::MakeColor(0, 0, 1, 1));
+			bInDebugModeTextBox->SetVisibility(ESlateVisibility::Visible);
+		}
+		else{
+			bInDebugModeTextBox->SetText(FText::FromString(""));
+		}
+	}
+}
+
 void USFHUDWidget::AddLogMessage(const FString& Text)
 {
 	if (!Text.IsEmpty())
@@ -74,6 +89,7 @@ void USFHUDWidget::AddLogMessage(const FString& Text)
 
 void USFHUDWidget::ClearWidget()
 {
+	//TODO Clear Debug as well? When is this called?
 	SetCondition({});
 	SetParticipant("???");
 	SetPhase("???");
@@ -83,6 +99,7 @@ void USFHUDWidget::ClearWidget()
 FHUDSavedData USFHUDWidget::GetData()
 {
 	FHUDSavedData Data;
+	Data.bInDebugMode = bInDebugMode; // TODO: Do we want to save, whether data has been collected in debug mode? Or should we treat it the same? What happens, if the first half is collected in debug mode, the second half in normal mode
 	Data.Status = StatusTextBox->GetText().ToString();
 	Data.Participant = ParticipantTextBox->GetText().ToString();
 	Data.Phase = PhaseTextBox->GetText().ToString();
@@ -93,6 +110,8 @@ FHUDSavedData USFHUDWidget::GetData()
 
 void USFHUDWidget::SetData(FHUDSavedData Data)
 {
+	//TODO Do we want this?
+	//SetbInDebugMode(bInDebugMode);
 	if (Data.Status.StartsWith("Status:"))
 		StatusTextBox->SetText(FText::FromString(Data.Status));
 	else
diff --git a/Source/StudyFrameworkPlugin/Private/HUD/SFMasterHUD.cpp b/Source/StudyFrameworkPlugin/Private/HUD/SFMasterHUD.cpp
index 621efd06c2977aa38f754d1a17f4dad21aa89728..bc768fad2e5d85b466543a5255b64525797710b1 100644
--- a/Source/StudyFrameworkPlugin/Private/HUD/SFMasterHUD.cpp
+++ b/Source/StudyFrameworkPlugin/Private/HUD/SFMasterHUD.cpp
@@ -83,6 +83,7 @@ void ASFMasterHUD::BeginPlay()
 	FHUDSavedData& Data = USFGameInstance::Get()->HUDSavedData;
 
 	HUDWidget->SetData(Data);
+	HUDWidget->SetbInDebugMode(bInDebugMode);
 
 	if(UnForwardedParticipant)
 	{
@@ -197,6 +198,14 @@ void ASFMasterHUD::SetNextConditionButtonVisibility(ESlateVisibility Visibility)
 	HUDWidget->GetNextButton()->SetVisibility(Visibility);
 }
 
+void ASFMasterHUD::SetbInDebugMode(bool InDebugMode)
+{
+	bInDebugMode = InDebugMode;
+	if (HUDWidget) {
+		HUDWidget->SetbInDebugMode(InDebugMode);
+	}
+}
+
 void ASFMasterHUD::DrawBackground()
 {
 	FLinearColor BackgroundColor = FLinearColor::Black;
diff --git a/Source/StudyFrameworkPlugin/Private/SFGameInstance.cpp b/Source/StudyFrameworkPlugin/Private/SFGameInstance.cpp
index 86d6b019851a01f610b99afb233e797a3de8e10e..43e201a9fc88b64f104fbd4d56d03c3dd9c8c604 100644
--- a/Source/StudyFrameworkPlugin/Private/SFGameInstance.cpp
+++ b/Source/StudyFrameworkPlugin/Private/SFGameInstance.cpp
@@ -155,7 +155,7 @@ void USFGameInstance::RestoreLastParticipantForDebugStart(USFCondition* InStartC
 
 	Participant->Initialize(ParticipantSequenceNumber, ParticipantID);
 	Participant->LoadConditionsFromJson();
-
+	Cast<ASFMasterHUD>(GetWorld()->GetFirstPlayerController()->GetHUD())->SetbInDebugMode(true); //Display notification in HUD, that we are in debug mode
 	
 	InitFadeHandler(StudySetup->FadeConfig);
 
diff --git a/Source/StudyFrameworkPlugin/Public/HUD/SFHUDWidget.h b/Source/StudyFrameworkPlugin/Public/HUD/SFHUDWidget.h
index fb9d0c58bbdf91a73e551ad5f3ab35085ede85cf..95b5830fc425f174a8c3303a5d3f1bb14e732147 100644
--- a/Source/StudyFrameworkPlugin/Public/HUD/SFHUDWidget.h
+++ b/Source/StudyFrameworkPlugin/Public/HUD/SFHUDWidget.h
@@ -17,6 +17,7 @@ USTRUCT()
 struct FHUDSavedData
 {
 	GENERATED_BODY()
+	bool bInDebugMode;
 	FString Status;
 	FString Participant;
 	FString Phase;
@@ -44,6 +45,8 @@ public:
 	void SetCondition(const TMap<FString, FString>& Texts);
 	void SetStatus(const FString& Text);
 
+	void SetbInDebugMode(bool InDebugMode);
+
 	void AddLogMessage(const FString& Text);
 
 	void ClearWidget();
@@ -60,6 +63,10 @@ public:
 
 private:
 
+	// Notiy user in HUD, if level is used in Debug-Mode
+	bool bInDebugMode = false;
+	UPROPERTY(EditAnywhere, meta = (BindWidget)) UTextBlock* bInDebugModeTextBox;
+
 	UPROPERTY(EditAnywhere, meta = (BindWidget)) UTextBlock* StatusTextBox;
 	UPROPERTY(EditAnywhere, meta = (BindWidget)) UTextBlock* ParticipantTextBox;
 	UPROPERTY(EditAnywhere, meta = (BindWidget)) UTextBlock* PhaseTextBox;
diff --git a/Source/StudyFrameworkPlugin/Public/HUD/SFMasterHUD.h b/Source/StudyFrameworkPlugin/Public/HUD/SFMasterHUD.h
index 23fdb7212e40039f1c9ef0b85cc48f9f4b6b4321..619c1c6195cc05bc799082edf20b6db3df85e579 100644
--- a/Source/StudyFrameworkPlugin/Public/HUD/SFMasterHUD.h
+++ b/Source/StudyFrameworkPlugin/Public/HUD/SFMasterHUD.h
@@ -49,6 +49,9 @@ public:
 	UFUNCTION()
 	void SetNextConditionButtonVisibility(ESlateVisibility Visibility);
 
+	UFUNCTION()
+		void SetbInDebugMode(bool InDebugMode);
+
 	UPROPERTY(EditDefaultsOnly, Category = "Interactive")
 	TSubclassOf<USFHUDWidget> SFWidgetClass;
 	UPROPERTY(EditDefaultsOnly, Category = "Interactive")
@@ -75,6 +78,8 @@ private:
 	void DrawBackground();
 	float BackgroundAlpha = 1.0f;
 
+	bool bInDebugMode=false;
+
 	ASFHMDSpectatorHUDHelp* HMDHUDHelper;
 	bool bHMDHUDHelperTextureSet= false;