diff --git a/02-top-level-menu-features.md b/02-top-level-menu-features.md
index 1adc1371..dfee6519 100644
--- a/02-top-level-menu-features.md
+++ b/02-top-level-menu-features.md
@@ -21,6 +21,17 @@ exercises: 3
 
 ## Getting Started with MarcEdit
 
+:::::::::::::::::::::::::::::::::::::: instructor
+
+Note: A number of differences have been noted in the Top Level Menu design and features for Mac users in this lesson:
+- Help is in the top menu bar, not in the window
+- Preferences gearbox is located on the bottom right hand corner of the main window
+- Add a shortcut is not available on a Mac
+- Quicklinks are not available on a Mac
+- File association settings are not available on a Mac
+  
+:::::::::::::::::::::::::::::::::::::::::::::::::
+
 ## Top Level Menu Features
 
 When you launch MarcEdit, the main window opens. From here, you can access the suite of MarcEdit tools, features, plug-ins, quick links, or help.
diff --git a/fig/field-count-report.png b/fig/field-count-report.png
old mode 100755
new mode 100644
diff --git a/fig/find-all-results.png b/fig/find-all-results.png
old mode 100755
new mode 100644
diff --git a/fig/main-menu.png b/fig/main-menu.png
old mode 100755
new mode 100644
diff --git a/fig/marc-editor-empty.png b/fig/marc-editor-empty.png
old mode 100755
new mode 100644
diff --git a/fig/marc-editor.png b/fig/marc-editor.png
old mode 100755
new mode 100644
diff --git a/md5sum.txt b/md5sum.txt
index ef99e4c1..28cc8c08 100644
--- a/md5sum.txt
+++ b/md5sum.txt
@@ -4,7 +4,7 @@
 "config.yaml" "38cbe68e869fff2b0ee30b6bc4e3a98b" "site/built/config.yaml" "2023-10-05"
 "index.md" "cfdf64fcd2eb835be0b6137361b16f0b" "site/built/index.md" "2023-05-02"
 "episodes/01-introduction.md" "ec7862eb38661b11163ce6e74ec94007" "site/built/01-introduction.md" "2023-04-25"
-"episodes/02-top-level-menu-features.md" "ab9cb3286890a173ba74249a9d0ed4aa" "site/built/02-top-level-menu-features.md" "2024-08-08"
+"episodes/02-top-level-menu-features.md" "51bb88a2f3b2f1e0a463af05ce021307" "site/built/02-top-level-menu-features.md" "2024-08-23"
 "episodes/03-working-with-MARC-files.md" "a0b13480b40b9b87f5f64aa9d0948f54" "site/built/03-working-with-MARC-files.md" "2024-08-09"
 "episodes/04-layout-of-the-MarcEditor.md" "06e2edafb1116c23caed1d8977f112d4" "site/built/04-layout-of-the-MarcEditor.md" "2023-04-25"
 "episodes/05-profiling-your-MARC-data.md" "5743310394da5639586e08d4cf831482" "site/built/05-profiling-your-MARC-data.md" "2024-07-11"