Adobe Portfolio

Hey!

I am building a portfolio using the Adobe Portfolio platform. 

I am trying to make my site easy to navigate, but this is tricky as I am multi-disciplinary. 

QUESTION: I want to add a collection page within an existing collection page. Does anyone know of a way I can do this?

Eg: I have a collection page called "what I do" with Interior Design, Graphic Design and Branding within it. Then I wanted to add a collection for each of these disciplines individually so that I can have a cover photo per project. 

Can anyone confirm if there is a way this can be carried out?