How to undo the matched transaction.

1. Open the matched number which we want to delete. 
2. Select the matched tab,
3. Select the trade which we want to delete and click on Remove button
   
4. By doing this the matched Quantity will get added with the balance lot of the same trade number.( in this case 5 Lots will get added back to the balance lot)

How to delete the matched details.

        This can be achieved through using Delete button. This will delete the entire batch at a time.