Hi,

Is it possible to do a flat rate shipping based on weight?
I need to add a 'registered mail' option to my shipping modules.
and this registered mail service charge the customer by weight.

For example:

I want to charge $2/2kg. which means the system will automatically adds up the charges based on weight.. like this:

$2/0-2kg
$4/2-4kg
$6/4-6kg


Pls help. if this method is possible. Thanks!!