[TYPO3-english] Page tree and menu navigation

[Sergio]

My page tree:

  Main
  |
  |--------> 1. Main (domain: www.main.com)
  |           	  |--------------> 1.A. Services
  |		  |		  	  |--------------> 1.A.1. Description
  |		  |		  	  |--------------> 1.A.2. Contact (shortcut to: 2.A.)
  |           	   \-------------> 1.B. Products
  |				  	  |--------------> 1.B.1. Description
  |				  	  |--------------> 1.B.2. Contact (shortcut to: 2.B.)
  |
   --------> 2. Forms (domain: www.forms.com)
	  	  |--------------> 2.A. Contact
	  	   \-------------> 2.B. Contact


I would like to get the next situation: 

 * when I'm in 2.A. and 2.B. page, the same menu navigation as site "1.
Main" would happen. Is there a way to preserve the FIRST page tree
despite you change domain and pages structure?

Maybe another page tree to get that? 

Sergio