Original: For more complex fields with pre-formated contents that would still be present even if the parameter was n't set , you can wrap it all in an '' # if '' statement to make the whole thing vanish when the parameter is not used .
Simplified: For more complex fields with preformatted contents that would still be present if a parameter was unset , you can wrap it all in a simple '' if '' statement to make the whole thing vanish when not used .