## 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
if (fiber == null) {
      return null;
    }
    const {_debugOwner} = fiber;
    const owners = [
      {
        displayName: getDisplayNameForFiber(fiber) || 'Anonymous',
        id,
        type: getElementTypeForFiber(fiber),
      },
    ];
    if (_debugOwner) {
      let owner = _debugOwner;
      while (owner !== null) {
        owners.unshift({
          displayName: getDisplayNameForFiber(owner) || 'Anonymous',
          id: getFiberID(getPrimaryFiber(owner)),
          type: getElementTypeForFiber(owner),
        });
        owner = owner._debugOwner || null;
      }
    }
    return owners;
  }
   Fast path props lookup for React Native style editor.
   Could use inspectElementRaw() but that would require shallow rendering hooks components,
   and could also mess with memoization.
  function getInstanceAndStyle(id: number): InstanceAndStyle {
    let instance = null;
    let style = null;