## 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
}
  }
  function prepareViewAttributeSource(
    id: number,
    path: Array<string | number>,
  ): void {
    const inspectedElement = inspectElementRaw(id);
    if (inspectedElement !== null) {
      window.$attribute = getInObject(inspectedElement, path);
    }
  }
  function prepareViewElementSource(id: number): void {
    const internalInstance = idToInternalInstanceMap.get(id);
    if (internalInstance == null) {
      console.warn(`Could not find instance with id "${id}"`);
      return;
    }
    const element = internalInstance._currentElement;
    if (element == null) {
      console.warn(`Could not find element with id "${id}"`);
      return;
    }
    global.$type = element.type;
  }
  function setInProps(id: number, path: Array<string | number>, value: any) {
    const internalInstance = idToInternalInstanceMap.get(id);
    if (internalInstance != null) {
      const element = internalInstance._currentElement;
      internalInstance._currentElement = {
        ...element,