Shop/monster with custom items?

hey

Has anyone figured out how to put custom items into a monster's drops or into a shop?

heres an example..

i made an item with the name Warrior Bow, it doesnt have its own item id (eg. DS101) so when i spawn it in game i have to type ~/@get "Warrior Bow".

I have tried to put this item into a shop or in a monster's drops just by putting in the name into the npc or monster's file and it doesn't seem to work.

looks something like this for drops
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nobody reply, I have this issue, I want to add item to pilai shop but I don't know the way
Please help me

oh, I think that we can edit NPC shop to add all items into shop