By default Package configurations Organizer is not available in SSIS 2012

By default SSIS 2012 project is in Project Deployment Model, so you won’t see the package configurations organizer by right clicking on Control flow. To enable package configuration, convert the project into Package Deployment Model.

Once you convert it, you will see the package configuration organizer same as SSIS 2008 and 2005.

Cheers!