If you want to create new link in right menu: first you must create the article and then create the link.
Create the article
Create the link
1. Meniu > Rightmenu
2. Click the icon New on the top right
3. If you create the article link, click Article > Article Layout.
4. Fill in the form:
Title: - write the section name
Alias: - write the same name without spaces, commas.
Published - tick Yes.
In Parameters area on the right i you can see different fields. If you create the article link: browse the article, which must be open after clicking the link.
5. Click the icon Save on the top right
New link will be in the of the menu. If you want to change the order, you can do it in the Menu > Right menu list (column Order).