Use the blue buttons at the top of the Scheduler to change your view.
The left arrows let you skip the view forward/backward.
"Jump to Today" centres your view on today's date.
Month, 3 month, 6 months and 1 year let you switch between displaying content across these time periods.
When 1 year is selected you can use your mouse to scroll the view to show you the period that you are looking for.
Click any of the campaigns in the Scheduler to expand and view tasks/diary events across all available dashboards.