A: Hi,
You can find a couple of screenshots on top of this page. If you want to see the author boxes "in action", please visit this demo page where we have added a few examples:
https://wpauthorbox.com/demos/

Unfortunately, it is not possible to submit guest stories via the author box. But you can have a custom HTML tab on each author box, which means that you can embed the form if you want to and do whatever you want. Please see an example of the custom HTML tab here to see what it is capable of:
https://wpauthorbox.com/demos/custom-html-tab-demo/