Plugin download problem

Hi all

I’m working with instanced level and need a way to allocate an address to each instanced level tile, I can’t find a way to do this in 5.4 blueprints but did find a plugin that may have a way: www.unrealengine.com/marketplace/en-US/product/level-instance-helper/questions
but there is a problem “This listing has not been migrated to FAB by the seller. It is only available to use from your Vault in the Epic Games Launcher.“

Anybody know how to access this download or has this plugin PLEASE help!