Once you've set those up, you can set the "Magic Matrix Category" field on a product item (but also, definitely worth knowing that you can bulk update this field to):
Having said all of that, it really isnt that obvious how to configure all of this from the interface, so thanks for the feedback. We've logged a seperate product update to make it a lot more obvious and to improve the documentation.
The Magic Matrix is initially setup using whatever we can extract from the ERP/Inventory Management system that you're using.
However, you can configure your own categories.
if you go here you can configure new categories and obsolete ones you dont want: https://crm.prospect365.com/settings?search=magic%20matrix
Once you've set those up, you can set the "Magic Matrix Category" field on a product item (but also, definitely worth knowing that you can bulk update this field to):
Having said all of that, it really isnt that obvious how to configure all of this from the interface, so thanks for the feedback. We've logged a seperate product update to make it a lot more obvious and to improve the documentation.