added mappings for 3rd window

main.cpp

@@ -37,6 +37,13 @@ const std::map<KeySym, const KeyboardMapping> kbd_map = {
     {XK_Right, KeyboardMapping("Right", 1)},
     {XK_Control_R, KeyboardMapping("Control_R", 1)},
     {XK_Delete, KeyboardMapping("Delete", 1)},
+    // 2
+    {XK_i, KeyboardMapping("Up",    2)},
+    {XK_j, KeyboardMapping("Left",  2)},
+    {XK_k, KeyboardMapping("Down",  2)},
+    {XK_l, KeyboardMapping("Right", 2)},
+    {XK_n, KeyboardMapping("Control_L", 2)},
+    {XK_semicolon, KeyboardMapping("Delete", 2)},
     // all
     {XK_space, KeyboardMapping("Control_R", KeyboardMapping::ALL_WINDOWS)},
 };