diff --git a/lib/ace/keyboard/vim/maps/motions.js b/lib/ace/keyboard/vim/maps/motions.js
index db69e6ef..d082e5ce 100644
--- a/lib/ace/keyboard/vim/maps/motions.js
+++ b/lib/ace/keyboard/vim/maps/motions.js
@@ -262,6 +262,40 @@ module.exports = {
                 editor.selection.selectLeft();
         }
     },
+    "H": {
+        nav: function(editor) {
+            var row = editor.renderer.getScrollTopRow();
+            editor.moveCursorTo(row);
+        },
+        sel: function(editor) {
+            var row = editor.renderer.getScrollTopRow();
+            editor.selection.selectTo(row);
+        }
+    },
+    "M": {
+        nav: function(editor) {
+            var topRow = editor.renderer.getScrollTopRow();
+            var bottomRow = editor.renderer.getScrollBottomRow();
+            var row = topRow + ((bottomRow - topRow) / 2);
+            editor.moveCursorTo(row);
+        },
+        sel: function(editor) {
+            var topRow = editor.renderer.getScrollTopRow();
+            var bottomRow = editor.renderer.getScrollBottomRow();
+            var row = topRow + ((bottomRow - topRow) / 2);
+            editor.selection.selectTo(row);
+        }
+    },
+    "L": {
+        nav: function(editor) {
+            var row = editor.renderer.getScrollBottomRow();
+            editor.moveCursorTo(row);
+        },
+        sel: function(editor) {
+            var row = editor.renderer.getScrollBottomRow();
+            editor.selection.selectTo(row);
+        }
+    },
     "k": {
         nav: function(editor) {
             editor.navigateUp();