Getting Modded Items to Appear in Moog's Structure Chests
Understand how the compatibility entries work
This addon does not add its own items. It rewrites the loot tables of Moog's Voyager, Soaring, End and Nether Structures so they pull from vanilla-style loot pools, and those pools include conditional entries that reference items from other installed mods. That means a modded item only shows up in a structure chest if the mod that owns that item is installed on the server. Install more compatible content mods and the same chests will start producing their gear.
Test with a controlled setup
In a test world, install one content mod at a time alongside the structure mod and Loot Integrations. Open several chests in the same structure type and note what appears. This tells you which mods the addon's conditional pools actually recognise, rather than guessing. If a mod's items never appear, that mod likely is not referenced by the addon's loot pools — that is expected, since the addon only covers a defined set of compatible mods.
Avoid fighting other loot mods
If you run multiple loot-overhauling mods, they can overwrite each other's tables. Keep only one loot integration layer active per structure set, or accept that the last-loaded one wins. Removing a content mod after world generation is safe for already-generated chests, but newly generated chests will simply skip the entries for the missing mod.