Auto Creator of "Additions & Swaps" to create complex kits

When creating Additions and Swaps for multiple products that all have size variations, it can take a long time to create these for all the variations. i.e T-Shirt Small with Trousers Small, T-Shirt Medium with Trousers Small etc. It would be great if there was a tool where i simply select the 2 or 3 products that i want to use to form a kit, add a qty of each item that i want to add and then click "create kit product" This would then autogenerate all the possible combinations that are possible with the qty pre filled