## The current behavior

The full value of the `key` is very difficult / impossible to find and use in the interface of the React Devtools.

![Kapture 2020-04-22 at 11 47 47](https://user-images.githubusercontent.com/1935696/79997715-25222680-84ba-11ea-97ba-51f1679a8c91.gif)

Only managed to find it by accident :(

## The expected behavior

The `key` is visible in the props list to the right.

### Detailed Proposal

As mentioned below in https://github.com/facebook/react/issues/18702#issuecomment-617924196

Add a light divider and new section in the props panel to the right.

Potentially also add a question mark that shows an explanation about the fact that things in this section are not really props.

Ref (Original implementation): https://github.com/facebook/react-devtools/pull/328
fiberSelfDurations,
            interactionIDs,
            priorityLevel,
            timestamp: commitTime,
          });
        });
        dataForRoots.push({
          commitData,
          displayName,
          initialTreeBaseDurations,
          interactionCommits: Array.from(interactionCommits.entries()),
          interactions: Array.from(allInteractions.entries()),
          rootID,
        });
      },
    );
    return {
      dataForRoots,
      rendererID,
    };
  }
  function startProfiling(shouldRecordChangeDescriptions: boolean) {
    if (isProfiling) {
      return;
    }
    recordChangeDescriptions = shouldRecordChangeDescriptions;
     C
     I
     s
     (