Enabling P4S Features in Farms
First, enable Mashup Site features for the appropriate SharePoint farms:
1. Open SharePoin Central Administration as a farm administrator.
2. Click System Settings and click Manage Farm Features in the Farm Management category.
3. Find the Presto Custom Farm Site Actions item and click Activate to activate these features or Deactivate to deactivate them.
Activating this feature adds a new category, JackBe Presto Administration, in the Manage Applications section of Central Administration.