Nested collection lists with unique values

Hey guys,

Two questions that i would love your feedback on!

1. Is there a way to do a nested collection list with unique values?

I want to create a pros & cons table with unique values for each page.

2. Do we know if the limitations of nesting only 1 multi-reference field in a collection will be improved upon any time soon?


Here is my public share link: LINK
(how to access public share link)