VR Smart Grid Lite v18.03 Source Code MQ4 Expert Advisor is a simplified demo version of VR Smart Grid Advisor. The EA is presented in order to demonstrate a part of the source code, and to demonstrate an example of its work with partial closing of orders by take profit and closing of orders by fractional lot. The EA uses large volume orders to partially close other orders, with this approach, the breakeven and profit price is much closer to the current price than if you use all orders in the terminal or their full volumes. As a result, the probability of closing orders or reducing lots in the market increases by several times. Run the EA in the strategy tester in the visualization mode, and you will see how the EA works on the chart. VR Smart Grid Lite Advisor will be useful for both beginners and professionals in trading and programming.