I added configuration options for the rest of the shield ingredients, I'll do polls for them later. I wish I could do multiple polls at once. I tried search for items by drop rates on the Terraria wiki, but I couldn't find a way to. I believe it wont create the new values in the configuration json, so you'll have to move the file somewhere else, then rebuild to recreate a new one. Then you can compare the two files so you can see what changes you made previously, then you can copy those changes to the new file.