When you are looking for a template it gives you an idea of the possibilities of what can be achieved.
When you have the template is save you trawling forums to find out what may be as simple as looking for such an explanation.
Unless I am missing something, these are already be shown at the
demo
of each template with all the details and information about all the features included with the template
Not only that, but if you go into the working demo and select feature and module positions it will have a highlighted area of each template. When I download a template that is the first thing I print out so I have it directly at my finger tips...