Is it possible to make dual wield bound weapons? I mean make the player summon two swords at the same time. If it's possible how do I do it.

Attach a script to the spell's magic effect that does something like:

Event OnEffectStart( Actor akTarget, Actor akCaster)BoundSword2.Cast(akCaster)EndEvent

That's if the magic effect already creates one bound sword, if you want the spell can simply be a script that casts 2 vanilla bound sword spells or 2 custom bound sword spells. It'd look something like this:

Event OnEffectStart( Actor akTarget, Actor akCaster)BoundSword1.Cast(akCaster)BoundSword2.Cast(akCaster)EndEvent

This casts 2 bound sword spells once the spell is fired.