PowerCMS Editor Stylesheet

I am using PowerCMS 2.1 and would like to use some of the styles used in my website (i.e. css formatted tables) in the editor used by the site administrators.

I have populated the dropdown style list in the editor with a number of styles used in the site to assist the administrators in keeping aligned with the styles used in the main site but i cannot fathom out how to change the editorarea to use table styles.

When the user clicks on the table icon in the editor toolbar and chooses the number of rows and columns i want a specific style to be applied, i.e. like what will appear on the main site when the page is loaded.

Any help here would be gratefully received.

Regards
Alan Edwards