I'm trying to debug using PhpStorm and I'm clueless...

I've installed Xdebug and I'm going through an excellent tutorial, but I'm missing something and I don't know what.

Below is a screenshot of what I'm looking at. There's a few things that I want to ask right out of the chute.

In the upper right hand corner, you'll see "pagesvc.php" in a pulldown. I can't change it! I'm not sure what that means or what I'm doing wrong, but that's the first question in that I can't "debug" any page, apparently, other than that one.

Second question is when you look at the "Debugger" screen, I don't understand what any of that means in that it looks as though it's saying that there's "No Authorization" detected. The page that I'm running is displaying just fine, so I don't know where that's coming from.

Bottom line: The tutorial and some of the recorded meetings that I'm going through that are using PhpStorm's debugging tool seem intuitive and easy to navigate - I can't get thing to even cough and sputter.

Not sure if the screenshot below helps, but what am I missing? Why can I not change the value in the pulldown and why does the debugger in general seem to be reporting on a problem that doesn't exist as far as my local server is concerned?