Redmine

dear all, im trying to customize atom code to display ONLY closed/archived projects.
Is it possible to do this?
I'm using ver 2.4

Environment:
Redmine version 2.4.2.stable
Ruby version 1.9.3-p194 (2012-04-20) [x86_64-linux]
Rails version 3.2.16
Environment production
Database adapter Mysql2
SCM:
Filesystem 
Redmine plugins:
no plugin installed