Hello,
You have to understand that for the same shipping plugin, you can create several shipping method.
Now let's focus on your needs :
- Create several Manual shipping methods to create your own way to process shipping.
- Have a look on restriction part, here :
Here you see
3 shipping method from the
manual shipping plugin.
- You have just to define for
each conditions/restrictions the
price for each shipping methods.
Then when your customer will fill his cart
only the required (from item number in the cart)
shipping method will be display.
Hope this will help you.
Regards