diff --git a/resources/usage.md b/resources/usage.md
index 59bf3af..dfc25b6 100644
--- a/resources/usage.md
+++ b/resources/usage.md
@@ -1,10 +1,10 @@
 #### Setting the root directory
 Choose Set HOME folder... from the File menu.
 #### Window layout
-There are three panels: Catalog/Output/Disk layout. The left and right panels can be hidden.
+There are three panels: Catalog/Output/Disk layout. The left and right panels can be hidden using opt-c and opt-d.
 #### Selecting a disk
-Click once on a disk in the Catalog Panel to display the contents of the disk. Double-click a disk to open it in a new tab.
+Click once on a disk in the Catalog Panel to display the contents of the disk. Double-click a disk to open it in a new tab. Once the tab has opened, click on a file to display it.
 #### Displaying a file in different formats
 Select Formatted/Hex Dump/Disassembler tabs in the Output Panel
 #### Displaying a disk sector
-Click a sector in the Disk layout Panel.
+Click a sector in the Disk layout Panel. Use the arrow keys to move around the sector map.