Timeline is an alternative view of your projects and tasks. It includes features as:
- Daily/Weekly/Monthly views
- Filters: by Groups, Projects, Users, Date Range and Status
- Drag-and-drop projects and tasks around
- Auto-refresh
- Print view
- new! Task Dependencies

With task dependencies you can connect tasks to each other. Moving the parent tasks will move all the dependent tasks as well, so re-scheduling is a breeze:

Read more about Task Dependencies 