Filter products by Addons

Hi,

in recent releases (4.1.7, 4.3.0) you mention compatibility with Product Addon plugins (AcoWebs, YITH). Is it only as described in documentation for Pro (don’t apply discount on addons) or can this be extended somehow?

I’m trying to create rules, where I have a simple product with addon – 3 radio buttons which represent different type of packaging. I would like to add a free packaging for each product. Addons have zero value and packaging should be free.

I tried to create a custom condition, but this can’t be applied in “Filter products” and from previous question I know I have to use that to match number of products with free packagings (2x small product adds 2x small white box, 3x large products adds 3x large white box etc..)