So I got the Pre-Order Collector's Edition from Steam. When I went to Mogstation I noticed a button for inputting info for Stormblood. I enter the Pre-Purchase Bonus Items first, lock in and got the O on the Stormblood Early Access, but when went to go enter the Collector's Edition code that button disappeared and where I look I can't seem to find a place to Register the code

This is my first time on Steam Pre-Order so I am kinda baseless on this events. Will I be able to add in my code on a later time such as on Release or did I goof and locked myself out of my Collector's Edition?