PS4 shipping

Hello there, Do you have any tutorials on how to set up the custom shipping costs. I am really having a lot of trouble understanding how it all works. I am able to calculate the shipping costs for individual items easily but i don't know what to do if someone wants to add multiple items to the shopping cart (I know the shipping cost price myself) but i don't know how to submit/enter it to the shipping settings. For example i am selling cards, i have been able to calculate shipping costs for 1 card and then for 2 cards but it won't let me add for 3 cards. each card weighs approx 0.1kg so i have added the weight up to 0.2kg and then to 0.3kg for 3 cards (the postage for 3 cards remains the same as 1 card ie £1.00.
Also i sell prints if someone wants to buy one print it ships at £3.50 if someone also wanted to purchase a card with the print it would still ship at £3.50. So what do i put in the boxes in the shipping settings to make this work.

Thank you (I hope this makes sense) A video tutorial on this would be very helpful

I dont think power store shipping will be able to do what you want to do, it wont support the type of shipping settings you are trying to implement.

For example, there is not a way to offer shipping that applies to prints which by passes the shipping for the cards.

I think the closest you will find is to set a Shipping / Handling rate on the Products update page.

Go to update a product and on the Additional settings tab, you can set a Shipping Handling rate for the product.

the shipping rate you enter will be multiplied by the quantity ordered for that product. this will allow you to set a per item rate for Cards, and a separate per item rate for prints.