## 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
findNativeNodesForFiberID,
    flushInitialOperations,
    getBestMatchForTrackedPath,
    getDisplayNameForFiberID,
    getFiberIDForNative,
    getInstanceAndStyle,
    getOwnersList,
    getPathForElement,
    getProfilingData,
    handleCommitFiberRoot,
    handleCommitFiberUnmount,
    inspectElement,
    logElementToConsole,
    prepareViewAttributeSource,
    prepareViewElementSource,
    overrideSuspense,
    renderer,
    setInContext,
    setInHook,
    setInProps,
    setInState,
    setTraceUpdatesEnabled,
    setTrackedPath,
    startProfiling,
    stopProfiling,
    storeAsGlobal,
    updateComponentFilters,
  };
}