[Plugin: WordPress Form Manager] Do not display some fields

Is there an easy way (other than with css) to prevent some fields from being displayed.

So you may want the person submitting the form to give their name and email but you may not want this information to be displayed in the post or page. These can be hidden in the front end display with css (visibility: hidden;) but that’s not entirely satisfactory as a resourceful researcher will find them with firebug or web inspector !

So has the plugin settings to achieve this (that i have not noticed) or how could one go about achieving this ? Any help much appreciated.

http://wordpress.org/extend/plugins/wordpress-form-manager/