diff --git a/src/GraphingInterfaces/GraphingEnums.h b/src/GraphingInterfaces/GraphingEnums.h
index 47139ad8..0686d74a 100644
--- a/src/GraphingInterfaces/GraphingEnums.h
+++ b/src/GraphingInterfaces/GraphingEnums.h
@@ -326,24 +326,18 @@ namespace Graphing
             //   Zoom out on all axes by the predefined ratio
             ZoomOut,
 
-            //   Zoom out on X axis only, leave the range of Y (and Z in 3D) unchanged
+            //   Zoom out on X axis only, leave the range of Y unchanged
             WidenX,
 
-            //   Zoom in on X axis only, leave the range of Y (and Z in 3D) unchanged
+            //   Zoom in on X axis only, leave the range of Y unchanged
             ShrinkX,
 
-            //   Zoom out on Y axis only, leave the range of X (and Z in 3D) unchanged
+            //   Zoom out on Y axis only, leave the range of X unchanged
             WidenY,
 
-            //   Zoom in on Y axis only, leave the range of X (and Z in 3D) unchanged
+            //   Zoom in on Y axis only, leave the range of X unchanged
             ShrinkY,
 
-            //   Zoom out on Z axis only, leave the range of X and Y unchanged. Apply to 3D graph only but not 2D graph.
-            WidenZ,
-
-            //   Zoom in on Z axis only, leave the range of X and Y unchanged. Apply to 3D graph only but not 2D graph.
-            ShrinkZ,
-
             //   Move the view window of the graph towards the negative X axis.
             MoveNegativeX,
 
@@ -356,12 +350,6 @@ namespace Graphing
             //   Move the view window of the graph towards the positive Y axis.
             MovePositiveY,
 
-            //   Move the view window of the graph towards the negative Z axis.
-            MoveNegativeZ,
-
-            //   Move the view window of the graph towards the positive Z axis.
-            MovePositiveZ,
-
             //   Zoom in on all axes by the predefined ratio. The ratio is smaller than used in ZoomIn result in a smoother motion
             SmoothZoomIn,
 
diff --git a/src/GraphingInterfaces/IGraphRenderer.h b/src/GraphingInterfaces/IGraphRenderer.h
index a3b6770b..85af9fe8 100644
--- a/src/GraphingInterfaces/IGraphRenderer.h
+++ b/src/GraphingInterfaces/IGraphRenderer.h
@@ -16,5 +16,10 @@ namespace Graphing::Renderer
 
         virtual HRESULT DrawD2D1(ID2D1Factory* pDirect2dFactory, ID2D1RenderTarget* pRenderTarget, bool& hasSomeMissingDataOut) = 0;
         virtual HRESULT GetClosePointData(float inScreenPointX, float inScreenPointY, int& formulaIdOut, float& xScreenPointOut, float& yScreenPointOut, float& xValueOut, float& yValueOut) = 0;
+
+        virtual HRESULT ScaleRange(double centerX, double centerY, double scale) = 0;
+        virtual HRESULT ChangeRange(ChangeRangeAction action) = 0;
+        virtual HRESULT MoveRangeByRatio(double ratioX, double ratioY) = 0;
+        virtual HRESULT ResetRange() = 0;
     };
 }