Ability to define accessory items on a per product/item basis.
Some products have required and optional accessory items, For Example, if you are buying an iphone, then the product details page should list a whole bunch of accessory items like a case, power adapter, etc. Each with the ability to purchase and link to their own product detail page.
Could even go so far as categorizing these accessory items in a required bucket or optional bucket.
Ildar Amankulov commented
Product Accesories is like a Recommended Product module. I agree Max you can use Related, having in mind two sales technique: Cross-selling and Up-selling. Cross-selling is what accessories will do mainly. In XC related products is dealing fine with this. If you want random related products in this situation things are changing. It was easy to clone the related products module, but XC4 is not an MVC model to do it in a minute.
Thank you for your idea.
At this moment you can add related products to the product and these product will be shown in "AddToCart" popup when a customer buys any product.
Make it required or optional is not supported by default software and we will review this idea.