Hi there,
We have a fairly large site with a few thousand products. One of the most dreadful experiences is when we add a new product to our site which we also want to add as an accessory (subproduct) to its parent. We sell a very accessory dependent product (sewing machines) where if we add a sewing machine needle, we need to add that needle to a few hundred sewing machine products. So what we have to do is add the new product (a sewing needle) and then go 1 by 1 into each sewing machine and assign the new product as an accessory (subproduct). What would be great is a reverse subproduct menu inside products where if you go to a product you can open up a menu similar to the assign to pages menu (except for with a filter/search) and choose all the parent products this product should get assigned to as an accessory (subproduct). This would save so much time for us and anyone that has a lot of accessories.