Having troubles with arrow quivers

[Izagaia]

I am attempting to put together my own variation of a weapons and armor mod and have generally figured out how to create new items and ID's for unique variations of exsisting types of items and how to place them into containers within the game. It seems to be a basic manipulation of using the two file types, ".nif" and ".dds" within the tree on the left side of the TES construction set.

 

However, in going over that tree and all the options the application provides, I cannot seem to figure out where the .nif and .dds files for "quivers" are utilized. Do you just place them in a folder somewhere specific to the quiver type and the game just picks up on it or is there somewhere in the TES set they are utilized that I am not looking at?

 

 

Thank-you.