## 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
path?: Array<string | number>,
  ) => InspectedElementPayload,
  logElementToConsole: (id: number) => void,
  overrideSuspense: (id: number, forceFallback: boolean) => void,
  prepareViewAttributeSource: (
    id: number,
    path: Array<string | number>,
  ) => void,
  prepareViewElementSource: (id: number) => void,
  renderer: ReactRenderer | null,
  setInContext: (id: number, path: Array<string | number>, value: any) => void,
  setInHook: (
    id: number,
    index: number,
    path: Array<string | number>,
    value: any,
  ) => void,
  setInProps: (id: number, path: Array<string | number>, value: any) => void,
  setInState: (id: number, path: Array<string | number>, value: any) => void,
  setTraceUpdatesEnabled: (enabled: boolean) => void,
  setTrackedPath: (path: Array<PathFrame> | null) => void,
  startProfiling: (recordChangeDescriptions: boolean) => void,
  stopProfiling: () => void,
  storeAsGlobal: (
    id: number,
    path: Array<string | number>,
    count: number,
  ) => void,
  updateComponentFilters: (componentFilters: Array<ComponentFilter>) => void,
  ...