What will I learn to do?
The list of keywords will look like this on a story in the public area of your site.

The reader can click on any of the keywords that interest them, and go to a page with all the related stories.

Your site can use keywords to help the audience search and find articles on specific subjects.
Keywords link articles that are related, but are in different sections. When you assign keywords, the audience can easily find the stories that interest them.
Your audience also can navigate through the site by following keywords.
In this lesson you will learn the steps to assign keywords. You will also see how to delete, modify or add more keywords to an article.
Administrators may choose to disable the keywords feature entirely. They may also choose not to allow editors to assign keywords.
Before trying to use keywords on your site, be sure that your administrator has enabled and created keywords and allows editors to assign them.
Navigate in the site using keywords
First, watch the steps
You have just created and saved an article.
Now you will assign the keywords.
Make sure you are using Complete Interface rather than Simplified Interface.

On the article page, click on the small arrow to the left of “Keywords” to unfold the menu
Keywords are arranged in groups. Groups are added by the administrator.
Each group has its own drop-down menu.
Click on the drop-down menu for a group
Select one of the keywords
Click "Select"
You will see that a keyword is added to the article.
Click on a second group and select one of the keywords
Click on "Select"
You can add more than one keyword from the same group.
If there are more than 50 keywords, the drop-down menu is replaced by a search engine. Just enter the desired keyword and click on Search.
Assign keywords to an article
Can I add more keywords later?
You can add more keywords at any time, even after you have submitted the article for publication. But an editor can only add keywords for the articles that he or she has submitted.
In order to add more keywords, just repeat the steps:
Click on the group and select the additional keyword
Click on “Select”
Assign more keywords