The WYSIWYG (What You See Is What You Get) editor "JCE" is installed on all Joomla! based websites developed here.  This editor allows for choosing menus and articles within the current web site, as the illustration shows.



The Link dialogue box for the JCE editor

The initial process is the same:-

Open an article for editing
Highlight the words to appear as an underlined link in the finished page
Click the "Insert/edit link" icon (a chain which became active when text is selected)

This opens a dialogue box. To choose the right menu:-

Click the + next to Menu
Click the + next to Main Menu

Find the menu that you want to link.

Click the + next to that menu

This shows all the options below that menu item.

Highlight the one you want to use

To open it in a new window (rather than in the same page):-

Click Target - there is a list of choices.
Choose Open in New Window

Finally - to insert the link -

Click on the Insert button


A link to an external Web site

You need to know the address of the page you want to link. The best way to do this is:-

Open the page you want to link to.
Copy (Ctrl-c does this) the address in full from the top of the browser screen

In your article:-

Enter the text to be linked if it is not there already. (This is what appears as an underlined link in the finished page.)
Highlight the text to be linked
Click the "Insert/edit link" icon (a chain which becomes active when text is selected - in the bottom row of icons)

This opens the dialogue box

Paste in the address of the destination page in the Link URL box (Ctrl-v)

To open in a new window (rather than in the same page) - this is often helpful for external sites:-

Click Target - there is a list of choices.
Choose Open in New Window

Finally - to insert the link -

Click on the Insert button