How to make the character u customized show in game videos

Im gonna have an interface for designing your character (hair types,color ,size etc.)
But in the videos instead of showing the default character how do i make it show the person u designed

And also how do i get the design interface an option

Well, don’t use a default character in the (cutscenes is the only way to accomplish this, not videos). Use the one they built.

You ‘get the design interface an option’ by using your existing method of reading input and adding another option to that which takes you to the design phase.