It would be awesome to be able to expand linked records when they appear in lookup fields. Currently you can only expand linked records from the card they are directly linked to.
For example, given the tables Family, Person, and Hobby. Hobbies are linked to a Person. People are linked to a Family. The Family table then looks up all the hobbies of the people in the family, but you cannot expand any of the hobbies to see more information about them.