you can have a website that uses that feature, but it is available through premium themes. you have to pay extra anywhere from $30-$50 to get the single page, slide down look.
http://www.tripwiremagazine.com/2012/05/single-page-wordpress-themes.html
I had a similar question. By professional version do you mean this link http://www.inkthemes.com/wp-themes/bizway-responsive-wordpress-theme/ ? Is there anyway to add extra image slides to the slider in the basic free download? or not possible?
