The procedure for using the Tab Menu to add a tab is as
follows.
Procedure
- From the tab menu 
 on the left side of the tab bar, click Add
tabs. 
- In the list of available pages, select the page you want.  
You can select multiple pages.
  
- Click the right arrow button to move the page to the Selected
entries box.
 
- Click OK.  
The tab
for the page appears in the portal.