Me and many others have so many Items that block inventory space, because the ydont stack in the inventory. Thats especially the case for seal.ed books of combat, Sealed books of Life, Blesing of Kamasilvia, Secret Book of Old Moon, weapon exchange coupons and several more . Its the exact same item, but its not stackable that means it takes up a lot of inventory space. For Books of Combat and Life you cna just remove the book, that is currently in use from the stack.

That changes would improve the Quality of Life by tenfold.

and PA should stop making 2 or more variations of the same item, like pearl, normal, event, old version, new version...

Very true!!