It would be amazing if we coul activate a Key-Field in a table and re-use that key field in a second table.

Here is an example use-case:

• Table A: List of Movies
  -- Fields: Name, Year, Category, etc.
  -- Key Field: Name

• Table B: Comments
  -- Fields: Name (From Table A), Rating, Comment

That would be amazing because, than you could add a Link in Table A that says "show comments" that links to Table B that is Pre-Filtered (#171) for the Movie that you want to see the comments for.

Long term goal would be to pre-aggregate the informations from Table B in Table A. So instead of having a column with a link that says "show comments" we could have a column that says "average rating" or "number of comments".