Mapping categories

Hi there,

I already saw this topic about my question, but something is still unclear to me about my current situation. I have a file which contains the hierarchy of the categories

Elektronica>Keukenapparatuur>{categoryName2[1]}

One of the values which can be returned from the variable {categoryName2[1]} is the value “Pizza Ovens”

When this value is returned i need the category structure to become

Elektronica>Keukenapparatuur>Ovens>Pizza Ovens

How would i have to edit that in this code: https://d.pr/zqrSxm
Or can it be done in the standard gui mapping?

The page I need help with: [log in to see the link]