Appreciate help in advance - API - AppyStyle

Hi,

I'm using FCKEditor as an editor with hidden Toolbar and using customized buttons to make changes:
oEditor = FCKeditorAPI.GetInstance(element) ;
oEditor.Commands.GetCommand( commandName ).Execute() ;

Execute command for Bold, Italic, etc works just great!!!

But changing Font name, size or appending URL are giving me troubles...

Please, point point me in the direction I need to follow...

Thank you