Before you use the Installation Manager to install or update packages, you can set preferences that
control the characteristics of your environment. To set these preferences,
go to File > Preferences....
Repository preferences
A repository is a location that stores data for installing,
modifying, rolling back, updating, or uninstalling packages.
Setting rollback preferences
Use the rollback feature to revert an updated package back
to a previous version. To complete the rollback, Installation Manager
requires information from the earlier version of the package. Some
packages do not support rollback.
Internet preferences
Proxy servers enable connections to remote servers from
behind a firewall.
Updates preference Installation Manager can
search for updates to itself.