Hello, if I remember, Magento has the ability to assign items as a related item. This should be expanded to set such related as a cross-sells, up-sells or accessories.
Apple MacBook is the model we are looking at.
A cross-sell would be a carrying bag or an iMac. It is related to this item, but not necessary to use.
A up-sell would be MacBook Pro.
An accessory would be an item that is necessary or VERY recommended for this item.
This feature would be super!