Okay, yes, it looks like number 1 is working. I think I just happened upon a few items that must not have had the proper tag applied. Sigh, I probably should have kept a list of those.
I will try to do that in the future.
As for number 2, that would be awesome. I have been working on Magic Weapons and Armour from Fantasy Companion 1&2 and precluding existing armour and weapons, not too bad, maybe a dozen between the two. But holy crap, trying to preclude all or most of Magic Items...I will age considerably trying that. And I am already pretty damn old
I just think any future Companion or setting book should have have a mechanism to "hide" all so to speak. We have to do a lot of precluding in our setting files sometimes.