Currently weapons on NPCs can be excluded from the gear list by setting their type to "Natural", but that doesn't work for any other physical item types. It is also impossible to add an item to an NPC that is in the gear list but doesn't appear on the Features tab or in the stat block (for example, a NPC might have a special "Poisoned Dagger" attack they use, but their gear lists several mundane daggers).

We could perhaps implement a flag that allows for more precise control over whether items appear in just the Gear list, just on the Features, or in both locations.