I need to add an internal link in the menu of the presentation page to each one of the different sectors of the same: columns, text1, text2, etc.
I’m using Nirvana theme
The presentation page’s sections have unique identifiers (which you can see with the browser’s inspection/development tools) that can be used in custom menu items.
For example, to link to the second text area you can use #pp-textmiddle in the URL field.