Calculation of shipping methods for the shopify bundle app

[TAM本間]

I was able to create the product bundle.
What I am having trouble with now is the shipping method.

I created the bundle as a bulk purchase of product A.
I have set up a custom delivery as mail delivery for the A product.
I want to use the default shipping method (standard shipping) for the bundle of 4 A products, but currently the bundled products are also recognized as mail delivery.
Is there any way to set the default shipping method (standard shipping) for the 4 bundled products?

[Shopify Bundles]

https://apps.shopify.com/shopify-bundles?locale=ja