Suzie_Halliday Create - leftmost Nanel "Inxton" - second button from the top - Stories- click on it - a window with short stories opens - the explorer button is clicked - a window opens "draft (0) published (14) trash (0)" click on the "publish" tab - then use the mouse to select the "create chapter" button, it is located on the top panel in the far right corner.
You write everything in a new chapter, on the top panel there are two buttons to save and publish, press, make changes if necessary in the dialog box and publish your short story
Hope this helps you!