In Phoenix 1.4 the User’s Guide where split up into product-specific guides to facilitate finding relevant information for each type of user.
The same examples as in 1.3 are at the end of each of the User’s Guides in PHX 1.4. Therefore, for Phoenix WinNonlin go to Help>Documents>Phoenix WinNonlin 6.4 User’s Guide and you will find the examples in section ‘WinNonlin Examples’ page 439