Making a section inside a section

So I’m creating a portfolio, and I have projects which is repeatable and then inside there I would have things like title, description (which works great) – but when I have other items that are repeatable such as images, credits etc. How do I handle that so that I get everything under one page?

So right as it is now, I can create multiple cases - but how can I upload multiple images and add multiple credits to the same page? Is it possible even?

AFAIK this isn’t currently possible.
The workaround i’m using is to add many fields, and conditionally show them:

{{#if credit1 }}
{{#if credit2 }}
{{#if credit3 }}

There is an issue open for that: