Dear Customer,
Thank you for contacting DotStore.
1) Additional Shipping Charges Based on Shipping Class” is there a way to import the costs I’ve already set from my standard shipping in WooCommerce?
– Yes, it is possible, but we have to go with the Customize option.
2) let say I have two items in the cart, it will only charge shipping for the one that has the advanced shipping method and not the other.
– The Shipping cost calculates only the shipping method, which you apply in the settings.
The Advanced Flat Rate Shipping Method allows you to apply multiple shipping methods.
Based on Location, Product, Category, Weight, Quantity, Zones.
For further technical details, please write us on Support Ticket, and please share the URL and screenshot, it will help us to review the problem you are facing.
https://www.thedotstore.com/support/
Happy to help, and get back to you shortly.
Thanks & regards,
DotStore Support Team