diff --git a/CanvasApp/FloatingSpace/FloatingObject.js b/CanvasApp/FloatingSpace/FloatingObject.js
index 68ff5f01a..f68de09a6 100644
--- a/CanvasApp/FloatingSpace/FloatingObject.js
+++ b/CanvasApp/FloatingSpace/FloatingObject.js
@@ -492,7 +492,7 @@ function newFloatingObject () {
   }
 
   function initializeFontSize (suggestedValue) {
-    var size = suggestedValue
+    let size = suggestedValue
     if (size < 3) {
       size = 3
     }
@@ -502,6 +502,17 @@ function newFloatingObject () {
     thisObject.currentFontSize = size / 3
   }
 
+  function initializeHierarchyRing (suggestedValue) {
+    let radius = suggestedValue
+    if (radius < 3) {
+      radius = 3
+    }
+
+    thisObject.rawHierarchyRing = radius
+    thisObject.targetHierarchyRing = radius
+    thisObject.currentHierarchyRing = radius / 3
+  }
+
   function initializeCurrentPosition (arroundPoint) {
     let position = {}
 
diff --git a/CanvasApp/Scales/TimeFrameScale.js b/CanvasApp/Scales/TimeFrameScale.js
index ab67a0bb9..c41907ee9 100644
--- a/CanvasApp/Scales/TimeFrameScale.js
+++ b/CanvasApp/Scales/TimeFrameScale.js
@@ -253,10 +253,8 @@ function newTimeFrameScale () {
   }
 
   function onMouseWheel (event) {
-    delta = event.wheelDelta
-
     if (IS_MAC) {
-      if (delta < 0) {
+      if (event.wheelDelta < 0) {
         if (wheelDeltaDirection === -1) {
           wheelDeltaCounter++
           if (wheelDeltaCounter < 5) {
diff --git a/CanvasApp/Scales/TimeScale.js b/CanvasApp/Scales/TimeScale.js
index 62a1220b3..fdf3a3a7b 100644
--- a/CanvasApp/Scales/TimeScale.js
+++ b/CanvasApp/Scales/TimeScale.js
@@ -116,6 +116,36 @@ function newTimeScale () {
   }
 
   function onMouseWheel (event) {
+    if (IS_MAC) {
+      if (event.wheelDelta < 0) {
+        if (wheelDeltaDirection === -1) {
+          wheelDeltaCounter++
+          if (wheelDeltaCounter < 5) {
+            return
+          } else {
+            wheelDeltaCounter = 0
+          }
+        } else {
+          wheelDeltaCounter = 0
+          wheelDeltaDirection = -1
+          return
+        }
+      } else {
+        if (wheelDeltaDirection === 1) {
+          wheelDeltaCounter++
+          if (wheelDeltaCounter < 5) {
+            return
+          } else {
+            wheelDeltaCounter = 0
+          }
+        } else {
+          wheelDeltaCounter = 0
+          wheelDeltaDirection = 1
+          return
+        }
+      }
+    }
+
     if (event.shiftKey === true) {
       autoScaleButton.container.eventHandler.raiseEvent('onMouseWheel', event)
       return