Chantre,
I’m sorry, but I’m having a hard time understanding what you are wanting to do. Something is getting lost in the translation apparently.
To begin the confusion I’m not understanding what you consider the difference between Stories and Content? And would this be the same as what Joomla calls “Article”. And not sure what you are meaning by a “Sub-Title” as Joomla doesn’t have subtitles per se.
In an Article you have the option to apply a “read more” break…and everything before that “read more” is considered the “intro text”. In the parameters you can choose whether to show the intro text.
I’m really trying to help…but I just don’t understand what you are looking for. Perhaps someone else can understand the issue.
John.