The “left empty part on the left of my tw-story” is Harlowe’s built-in sidebar, that you can add content to using the special ?Sidebar
Named Hook.
The “grey appearing menu” is part of the Harlowe Audio Library third-party addon, that you added to project. It is not part of Harlowe itself, and this addon only allows you to add “menu” links to that grey area.
Based on the screen capture images you supplied it appears that you added all of the TWEE Notation based example code of the Cookbook recipe to one Passage of your project, and that’s not how that example code is used.
In that recipe’s example code each line that starts with double full-colon characters ::
is known as a passage Header, and it represents a new Passage in your project. The text that follows those colons on the same line is the Name of the new Passage, and the textual content on the lines that follow it is the content of the new Passage.
eg. the following part of the recipe example
:: Start
Another passage
…is instructing you to create a Passage with a Name of Start, which you then add the Another passage textual content to.
If the Header line also contains Square Brackets with one or more words between them, then each those words should be assigned as a Passage Tag to the newly created Passage.
eg. the following part of the recipe example
:: Sidebar [footer]
(append: ?SideBar)[\
Name: $name
Location: $location
]
…is instructing you to create a Passage with a Name of Sidebar, to assign a footer Passage Tag to this new Passage, and add the following textual content to that Passage.
(append: ?SideBar)[\
Name: $name
Location: $location
]
The header line that starts with :: UserStylesheet [stylesheet]
treated differently, as it represents the Story Stylesheet area of your project. So instead of creating a new Passage you simply add the contents that follows that header line to your project’s Story Stylesheet area.
The header line that starts with :: StoryTitle
is also treated differently, as the textual content that follows it represents the Name of the Story Project, so unless to are creating a test project you can ignore that part of the recipe.
All of the above TWEE Notation related information and more can be found the Cookbook related link I supplied earlier.