Moving and transforming
  a site navigation bar
  If you move a site navigation bar on the page, the bar is also 
  moved on all the other pages on which it appears. Similarly if 
  you scale the bar to make it larger or smaller using the 
  Selector Tool, again the same transformation is applied to 
  the copy of the bar on the other pages. 
  No other transformations of a NavBar using the Selector Tool 
  are supported (rotation, skew, scaling in one dimension).
 
  
 
 
  
Automatic 
  page linking
  Whenever you add a new page to your site, a link to that 
  page will be added to your site navigation bar for you and 
  the new page will be given a copy of the bar, if it doesn't 
  already have one. If your bar has an unused button on it, 
  then the first such button will be linked to your new page. If 
  all buttons are already linked, a new button is automatically 
  added to the end of your bar and it is linked to the new page. 
  In either case, the label of the button is changed to match 
  the name of the new page, if it has a name, or to "New page" 
  otherwise. Normally you will want to immediately edit this 
  new label in the NavBar dialog.
  When you delete a page from your website, the button 
  linking to it on your site navigation bar is automatically 
  deleted for you, on all pages of 
  your site.