The most important steps to buy quickly :
1- Decimlas should be set the lowest possible value for the purchase speed as shown by the red rectangle
2- The list of sales orders must be specified as shown in the blue rectangle
3- You can buy from the first 4 sell orders from below as specified in the yellow box
4- The quantity to be purchased must be specified as shown in the green line
If the purchase order is not executed, it must be canceled and a new purchase order created
