diff --git a/Hotkeys.md b/Hotkeys.md
index 892b91c..c3edb29 100644
--- a/Hotkeys.md
+++ b/Hotkeys.md
@@ -4,6 +4,7 @@ This page will cover Hotkeys available in _Fantasy Map Generator_. Please note h
 
 General:
 * <kbd>F2</kbd> - generate new map
+* <kbd>Esc</kbd> - close all dialogs / editors
 
 Map scrolling and zooming:
 * <kbd>↑</kbd> - scroll up
@@ -16,6 +17,10 @@ Map scrolling and zooming:
 Adding elements:
 * <kbd>Shift</kbd> - hold to continue adding elements on click (e.g. burgs and labels)
 
+Heightmap editor:
+* <kbd>Ctrl + Z</kbd> - undo an action
+* <kbd>Ctrl + Y</kbd> - redo an action
+
 The result will be displayed in the Console (<kbd>F12</kbd> in Chrome):
 * <kbd>S</kbd> - log countries data as a table
 * <kbd>B</kbd> - log burgs data as a table