The 2 options for the meaning of * are :
- Include all items that do not have a handling group assigned
- Include all items in the cart
So, lets say you want to give bulky products a handling rate of $20 per order, and all other products a handling rate of $5 per order. You would set this field to NO, and then in csv file create rows for where handling group is “*”.
If, though, you wanted to set a base rate of $5 per order for all products, then if it was bulky apply another $5 per item, this can be done by setting the field to YES.