Marketplace creator content custom merge

I have recently shopped for and bought a bunch of creators content for things like furniture and new weapons and world builds. I noticed every single creator content containing these types of things come with their own separate world and currently will not show up in any other world the way that texture packs do. This is irritating when you want to play a world build WITH furniture AND new unique or special weapons, among many other things. Therefore, please find a way to allow creator content like weapons, furniture, mobs, etc, to be ported or plugged into other worlds like textures can be. Players would not only appreciate this feature, but would most likely be much more interested in buying more creator content if they knew they could actually use more than one content pack at a time/ per world.