Unless I misunderstand the exchanges here completely, it sounds as if you have built this document on a very awkward model. Put very simply, unless there are good and specific reasons to break up the content using sections, articles, individual INDD files and/or text flows, a document should be one flow from start to finish, with all content in that flow and separated using only Paragraph Style control elements, such as page breaks.
It sounds as if you have a separate text box for each story title, which is... not a good or manageable approach. If these titles are standalone text boxes, unconnected to the following story or the overall text flow, it's a really poor approach. (The method of using a separated text frame for chapter headings is, for some reason, a common choice by new users, and we usually hear from them here when they find themselves badly tangled up in formatting, TOC and organizational problems as a result.)
The short answer to what seems to be your core question, though, is no. There's no way to pull those chapter headings or story titles into one list you can edit; you can use a TOC feature to build a list, but it won't work in reverse (e.g. editing that list won't change the headings). And the TOC may work poorly if at all if you're using detached text boxes as I am asking above.
I think you are going to want to reflow the content into continous, contiguous pages, with the chapter headings and author bylines part of that single flow, and then use Paragraph Styles to break them into "separate stories" aka chapters. (That is, there should be one and only one primary text frame on each page — nothing manually split, added or anchored in later.) That still won't facilitate group editiing of the headings, but you could use InCopy to access the content in a more linear, editable form to speed the process.
In any case, sections have little or nothing to do with this organization unless, as I said, you want to have some control over things like page numbering in each chapter. Wrong feature entirely for what you seem to be trying to achieve. The minimalist feature of style-based page breaks seems to be the right choice; it's possible stories in separate flows or Articles are an option, but at 100+ iterations the management of those would get overwhelming.
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