Shipping options (by weight) for express vs regular post

Hi fellow squarespacers

I am trying to find a way to have two shipping options (depending on weight) for regular and express post.

Is this possible on Squarespace?

Thanks. 

I'm looking for an answer to this too.

Same! I don't think it's possible. Yet another piece of awful functionality from Squarespace. We are moving to Shopify in the New Year.. can't wait!!!