1. If you only have one bill, please right-click the bill, select Close, and then keep the window open. Click the close button on the right side of the price to close the bill.

2. If you have many orders in the same direction, and your trader allows you to lock positions, you can use the hedging order to close positions with one button, that is, open a new order with the number of hands in the opposite direction equal to all your positions, and then close positions with each other to level off. If you don't understand, you can search and trade foreign exchange, where there are graphic operations.

3. If your traders are not allowed to lock positions, you should use EA intelligent trading system to close positions. You need to find the corresponding EA online, and then import it into MT4 for use.

It seems that you asked a question about the volume of MT4. In MT4, the volume refers to the number of price changes of a single k line, not the number of hands traded.

I hope I can help you.