If I have to enter the name in the item instead of the index, where?
In the relevant column depending on the goal. Eg, for a recipe outcome you'd need to reference Balbi's Ring using its in-game name (as found in items.txt) in the "item1" column of the recipe's treasure.txt entry.
Bryan, do you have any Discord for London 2038?
Oh yes, since before the project even became public. A join button for it can be found on our main page (bottom right under the banner):
https://london2038.com/Conversely, this invite link should work too:
https://discord.gg/d4CRk7uPfe