Everyone who has the Star Wars Pack knows the problem that you can only fight with Sims who are in the same household. For all other Sims, it just means that they don't have a lightsaber.
Why is that? Well, the lightsaber hilts and the cyber crystals are collectibles and these are removed from the inventory of inactive households.
And what does this mod do now?
It prevents the lightsaber hilt and kyber crystal collectibles from being removed from the inventory, nothing more.
But it's perfectly sufficient to finally be able to fight with Sims from other households.