Enchanting used to create a unique form id, so the game thought it was a different item, even if it was named the same, was the same base weapon, and the same enchantment. I wonder how the game keeps enchanted items separate otherwise.
Hmmm. I guess it still creates a new ID. I never though to look at that. Then again they would just stack in your inventory and be used like other stuff.
You cannot assign a hot key to a weapon set. Nor can you assign a hotkey to a specific hand. Thus, dual wield with hotkeys is impossible.
That is one of the things I have had a problem with from the start. I can't believe a mod hasn't addressed this yet, either.
I commented on this earlier, but I found that the Iron dagger works fine, for this. It changes out the left hand and magic fine. So that tells me there is something in there to make it happen.