Use Product Filter To Exclude Results

I have added a feature group that classifies my food products by various "allergens" (e.g. Eggs, Milk, Soy, Nuts). When a customer uses this filter, I want the filter to "exclude" any products that have that particular feature (rather than continuing to show the products).

For example, let's say that I have 100 products and 3 have "Nuts" as an allergen and 3 have "Milk" as an allergen. When I select those feature/filters, I no longer want those products to be displayed. In other words, the customer will only see food that does NOT have those allergens.

I am afraid, this is not possible without code changes

I am afraid, this is not possible without code changes

Thank you for your reply. How could I find out more details about the extent of the code changes?

Thank you for your reply. How could I find out more details about the extent of the code changes?

For example, you can leave request on our website to get a quote

https://www.ecom-labs.com/?quote

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