I think it's not that easy to get a decent layout for her (Canoness) choices. I mean, going by the codex there's option A (bolt pistol and the rest), option B (chainsword and the rest) and option C (Storm bolter and the rest). If C replaces A you have to take B, but if C replaces B you have to take A.
Eldar is such an easy codex compared to most other stuff. Blessing and a curse.
Yeah that is exactly how it's supposed to be - she has a Bolter/bolt pistol, that she can replace with other weapons, then she can ALSO take weapons freely from Ranged, Melee, Special, and Relics lists.
I don't think that's what it says. She has two weapons off the bat: Bolt pistol and Chainsword. Those may be exchanged for a boltgun in the one case and a Power weapon or Eviscerator in the other. That's the first part of her options. Thén you get the option to exchange one of those with one from the list below. Not both. That's how I read it.
Not sure on #3114 Thought there was something in the HH files for it but I can't see it. There should be though. They've just been adding duplicate links to units in the selection entries and adding set modifier hide if some conditions aren't met.