I have a quite big model that calculates data on the input in its fields and the values on its related models. Now I need for a specific type of calculation some fields and especially those in related models filled with specific values. Can I use a wizard to create that specific record in the model? 

I only seen wizards used to set data on already created records and not creating new ones.

If I can use a wizard to do what I want, can I create a menu entry for it?