diff --git a/Event.h b/Event.h
index 6ae2fa92..27bad969 100644
--- a/Event.h
+++ b/Event.h
@@ -132,6 +132,10 @@ public:
     bool
         insert( TEventLauncher *Launcher ) {
             return m_launchers.insert( Launcher ); }
+    // returns first event in the queue
+    TEvent *
+        begin() {
+            return QueryRootEvent; }
     // legacy method, returns pointer to specified event, or null
     TEvent *
         FindEvent( std::string const &Name );
diff --git a/Globals.cpp b/Globals.cpp
index 4c1e9048..df17cb64 100644
--- a/Globals.cpp
+++ b/Globals.cpp
@@ -322,7 +322,9 @@ global_settings::ConfigParse(cParser &Parser) {
             // selected device for audio renderer
             Parser.getTokens();
             Parser >> AirTemperature;
-            AirTemperature = clamp( AirTemperature, -15.f, 45.f );
+            if( false == DebugModeFlag ) {
+                AirTemperature = clamp( AirTemperature, -15.f, 45.f );
+            }
         }
         else if( token == "scalespeculars" ) {
             // whether strength of specular highlights should be adjusted (generally needed for legacy 3d models)
diff --git a/Train.cpp b/Train.cpp
index 3124b6e0..e805954e 100644
--- a/Train.cpp
+++ b/Train.cpp
@@ -535,6 +535,7 @@ PyObject *TTrain::GetTrainState() {
     PyDict_SetItemString( dict, "hours", PyGetInt( simulation::Time.data().wHour ) );
     PyDict_SetItemString( dict, "minutes", PyGetInt( simulation::Time.data().wMinute ) );
     PyDict_SetItemString( dict, "seconds", PyGetInt( simulation::Time.second() ) );
+    PyDict_SetItemString( dict, "air_temperature", PyGetInt( Global.AirTemperature ) );
 
     return dict;
 }
@@ -6396,44 +6397,60 @@ void TTrain::set_cab_controls() {
     ggRadioChannelSelector.PutValue( iRadioChannel - 1 );
     // pantographs
     if( mvOccupied->PantSwitchType != "impulse" ) {
-        ggPantFrontButton.PutValue(
-            ( mvControlled->PantFrontUp ?
-                1.0 :
-                0.0 ) );
-        ggPantFrontButtonOff.PutValue(
-            ( mvControlled->PantFrontUp ?
-                0.0 :
-                1.0 ) );
+        if( ggPantFrontButton.SubModel ) {
+            ggPantFrontButton.PutValue(
+                ( mvControlled->PantFrontUp ?
+                    1.0 :
+                    0.0 ) );
+        }
+        if( ggPantFrontButtonOff.SubModel ) {
+            ggPantFrontButtonOff.PutValue(
+                ( mvControlled->PantFrontUp ?
+                    0.0 :
+                    1.0 ) );
+        }
         // NOTE: currently we animate the selectable pantograph control for both pantographs
         // TODO: implement actual selection control, and refactor handling this control setup in a separate method
-        ggPantSelectedButton.PutValue(
-            ( mvControlled->PantFrontUp ?
-                1.0 :
-                0.0 ) );
-        ggPantSelectedDownButton.PutValue(
-            ( mvControlled->PantFrontUp ?
-                0.0 :
-                1.0 ) );
+        if( ggPantSelectedButton.SubModel ) {
+            ggPantSelectedButton.PutValue(
+                ( mvControlled->PantFrontUp ?
+                    1.0 :
+                    0.0 ) );
+        }
+        if( ggPantSelectedDownButton.SubModel ) {
+            ggPantSelectedDownButton.PutValue(
+                ( mvControlled->PantFrontUp ?
+                    0.0 :
+                    1.0 ) );
+        }
     }
     if( mvOccupied->PantSwitchType != "impulse" ) {
-        ggPantRearButton.PutValue(
-            ( mvControlled->PantRearUp ?
-                1.0 :
-                0.0 ) );
-        ggPantRearButtonOff.PutValue(
-            ( mvControlled->PantRearUp ?
-                0.0 :
-                1.0 ) );
+        if( ggPantRearButton.SubModel ) {
+            ggPantRearButton.PutValue(
+                ( mvControlled->PantRearUp ?
+                    1.0 :
+                    0.0 ) );
+        }
+        if( ggPantRearButtonOff.SubModel ) {
+            ggPantRearButtonOff.PutValue(
+                ( mvControlled->PantRearUp ?
+                    0.0 :
+                    1.0 ) );
+        }
         // NOTE: currently we animate the selectable pantograph control for both pantographs
         // TODO: implement actual selection control, and refactor handling this control setup in a separate method
-        ggPantSelectedButton.PutValue(
-            ( mvControlled->PantRearUp ?
-                1.0 :
-                0.0 ) );
-        ggPantSelectedDownButton.PutValue(
-            ( mvControlled->PantRearUp ?
-                0.0 :
-                1.0 ) );
+        if( ggPantSelectedButton.SubModel ) {
+            ggPantSelectedButton.PutValue(
+                ( mvControlled->PantRearUp ?
+                    1.0 :
+                    0.0 ) );
+        }
+        if( ggPantSelectedDownButton.SubModel ) {
+            ggPantSelectedDownButton.PutValue(
+                ( mvControlled->PantRearUp ?
+                    0.0 :
+                    1.0 ) );
+        }
     }
     // auxiliary compressor
     ggPantCompressorValve.PutValue(
@@ -6750,7 +6767,7 @@ bool TTrain::initialize_gauge(cParser &Parser, std::string const &Label, int con
         { "horn_bt:", ggHornButton },
         { "hornlow_bt:", ggHornLowButton },
         { "hornhigh_bt:", ggHornHighButton },
-        { "whistle_bt:", ggHornHighButton },
+        { "whistle_bt:", ggWhistleButton },
         { "fuse_bt:", ggFuseButton },
         { "converterfuse_bt:", ggConverterFuseButton },
         { "stlinoff_bt:", ggStLinOffButton },
diff --git a/uilayer.cpp b/uilayer.cpp
index 3e81b53f..da030c78 100644
--- a/uilayer.cpp
+++ b/uilayer.cpp
@@ -184,6 +184,12 @@ ui_layer::on_key( int const Key, int const Action ) {
             return true;
         }
 
+        case GLFW_KEY_F11: {
+            // scenario inspector
+            Global.iTextMode = Key;
+            return true;
+        }
+
         case GLFW_KEY_F12: {
             // coś tam jeszcze
             Global.iTextMode = Key;
@@ -641,7 +647,34 @@ ui_layer::update() {
 
         case( GLFW_KEY_F10 ) : {
 
-            uitextline1 = ( "Press [Y] key to quit / Aby zakonczyc program, przycisnij klawisz [Y]." );
+            uitextline1 = "Press [Y] key to quit / Aby zakonczyc program, przycisnij klawisz [Y].";
+
+            break;
+        }
+
+        case( GLFW_KEY_F11 ): {
+            // scenario inspector
+            auto const time { Timer::GetTime() };
+            auto const *event { simulation::Events.begin() };
+            auto eventtableindex{ 0 };
+            while( ( event != nullptr )
+                && ( eventtableindex < 30 ) ) {
+
+                if( ( false == event->m_ignored )
+                 && ( true == event->bEnabled ) ) {
+
+                    auto const delay { "   " + to_string( std::max( 0.0, event->fStartTime - time ), 1 ) };
+                    auto const eventline =
+                        "Delay: " + delay.substr( delay.length() - 6 )
+                        + ", Event: " + event->asName
+                        + ( event->Activator ? " (by: " + event->Activator->asName + ")" : "" )
+                        + ( event->evJoined ? " (joint event)" : "" );
+
+                    UITable->text_lines.emplace_back( eventline, Global.UITextColor );
+                    ++eventtableindex;
+                }
+                event = event->evNext;
+            }
 
             break;
         }