With lists – the default behavior is that each details screen within that list shares the same set of components. If you delete one component from one item, all the items will no longer have that same component. This saves a huge amount of time and allows you to design for new items that aren't in your lists yet.
However, you can enable independent configuration for each screen, meaning you can have a totally unique layout of components for each item.
This checkbox 👆🏼can be found in the Features tab of the list.
Below we can see two items that are in the same list – but have a completely different set of components.
There are many different reasons why you might want to do this, but one of the most compelling ones is to turn normal list layouts into menus. In the app below, each item takes users to a unique screen and therefore acts like traditional app tabs.