Plugin that lists the site and page structure ?

Hello wp-friends !

I am looking for a plugin that makes it possible to add at the end of each page a site structure.

Let me give you an example. Let’s say you have the following page structure:

DOGS
– Smart Dogs
– Big Dogs
– Tiny Dogs

At the end of each page I would like to see a text like shown above. But the text should contain automatically the links to the pages … so it’s like a little sitemap for each page structure.

It would be also cool to have this as a widget… so it’s a dynamic widget.. what means, when ever you go to the page about DOGS the strucutre of the DOGS appear.

But let’s say you have pages about CATS.. the strucutre of the CATS appears.

I hoe that makes sense… thank you so much for every little help !