- 
Default
 
- 
Use the Navigator setting
 
- 
None
 
- 
Pages are not removed. This is generally suitable only for a liberal Reuse property, such as Inactive or Any
 
- 
Cleared
 
- 
When the list of pages is cleared, such as with a Goto
 
- 
Released
 
- 
As soon as the page is released (typically when no longer visible).