A Unity ID allows you to buy and/or subscribe to Unity products and services, shop in the Asset Store and participate
in the Unity community.
We're at the same point as @Rapapastor as I've also written here:...
Kudos to HeyMyName!!!
I asked InventoryPro asset publisher for an easy change like 2 years ago, and he STILL hasn't included it.
Thank you. Your asset looks like the most promising inventory system on the asset store.