I am using Australia Post Shipping Module.
But it combine the products' weight.
How can I do if I don't want to combine the weight?

What I want is one by one calculate the postage and plus them.

for example:

product1 weight 3kg, postage to 2000 postcode is $13.25,
product2 weight 2kg, postage to 2000 postcode is $12.35.
So total postage is $25.80,

but now, it combine to 5kg, the postage only $15.05.