Simplemap plugin

I’m using Simplemap plugin that I consider very useful.
First I’d like to know if there is a technical user guide.

In particular, I need to insert the map on different pages, each with a specific location category. Is there a way to set (pre-set) the location category inside a page, so that users only see locations belonging to that specific category?

I need then to insert a map inside category.php wordpress file, not therefore inside a page or a post. Is there a way to do that?

Many thanks