Today, it is only possible to make Add-ons at the product group level.
Every time an item has to have a product (s) as an option, a group must first be created in which the product (s) are added - and then this group can be selected as an add-on to the item.
My suggestion is that you should be able to add a product-level add-on.
Example:
I go onto a Lavender scented shaving cream, click the add-on and add Lavender Presphave and Lavender Aftershave to match.
This way I don't have to create the product group first and add the products in it.
The current flow is quite demanding when I want to do the example above for all shaving creams (etc.) - and each add-on group should only be used on one product.
Hope the explanation makes sense :o)
(It is important, of course, that one can add more than one product in this add-on, I suggest)
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