When you use fifth hope can you select fusions to shuffle into deck?

Question

When you use fifth hope can you select fusions to shuffle into deck?

Answer 1

No.

Answer 2

yes ... but remember that when any fusion is sent to the hand or deck it is returned to the fusion deck

Answer 3

Yes, return them to Fusion Deck then you draw 2 cards. (from your main Deck,  of course)

Answer 4

Yes, but they go to your Fusion Deck.