In cases where you want to link one article to another, to give the user some extra information, you can use the interlinking option in the article editor.

Like if you were to click here for example, will open another article inside the tab.

When adding the content for your article, highlight any text you'd like to convert into a link, and click the elevio interlink button, as shown below

Select "link to an article" from the available options, then just search for the article or module you want to link to, and you're done!

Interlinking is available on certain plans only