Changing pattern

1. Unlock Knock to Windows with default pattern.
2. In taskbar press right mouse button and select Settings.
3. Then press Change Pattern button.
4. In Confirm window enter curent pattern and press Confirm.
5. Then in Pattern tab enter new pattern and press Save.
   Thats all, now you can unlock Knock to Windows with your pattern.

Clearing pattern
If you want to clear pattern when you made mistake, just press rectangles seperating lines.