Multiple box products

Hi there We have some queries that we would like you to address regarding the packaging sizes and multiple-box packaging. If you check the single products like ( https://www.exagym.com.au/product/powerblock-sport-50/ ) (not the variable products), where it is a single product but the physical product is in 2 boxes. In the backend for shipping, it only lets you put dimensions and weight for 1 box so in this case, we have to add the dimension and weight together to essentially create 1 box i.e. instead of 2 boxes at 25 x 25 x 50 @ 24kg each we have to put it in as 1 box 25 x 50 x 50 @ 48kg. This in turn eliminates the cheaper couriers that will take the lighter boxes and therefore increase the cost of freight at checkout which could lead to cart abandonment. Is there any way so that we could set the shipping option in the backend for products such that it has information relating to the exact number of boxes required to pack that product and the dimension (LxHxW) and weight of individual boxes are sent to ShippIt so that ShippIt has all the required data from the website to recommend the best price for shipping? Do let us know if you have any suggestions? Thanks The page I need help with: [ log in to see the link]