Publishing a story to a directory can be achieved via the Share dialog of the story.
Note: In order to publish a story to a directory, you need to be an authorised publisher either via an authorised team or via the directory publishing settings.
The share dialog can be accessed by pressing the blue “Share” button in the top right of the story. Once open, navigate to the “Publish” tab as shown below:
The directories that the story can be published to are listed at the bottom of the dialog box as highlighted above. Simply select “Publish” to the directory/directories that the story needs to be published to.