My friend wanted to use more than one monitor for trading purpose (watching charts and indicators) from within Meta Trader. Actually the solution already exists if you have a laptop with Intel Chipset and an out for external Monitor.
There could be similar solution for other Chipset manufacturers too (Nvidea etc).
Select “extended desktop” from operating mode. That’s it. Now you can move the windows spanning from your laptop to the LCD Monitor.
I have a Samsung N150 Plus netbook and a Samsung LCD TV in which I personally use this setup.