Addition to Product Add ons to enhance it.
For a paid extension, this is very limited. Currently you create an add on and and enable/disable on all products.
What about when you only need a particular add on for about 30% or 50% of products. If you have 1000 products you then have to disable it globally and enter it 500 times individually once in each product.
How about Create All Add Ons in the Product Add Ons Section, then when you go to a product section (Add/Edit product) you are then presented with a multi select of all the addons you have created (Once only for each) and you choose which one or more for each product.
That way you only ever have to create each add on once