Processing Time Data in Calendar Views 
Use
The graphic-oriented calendar views contain many functions for processing time data quickly that are familiar from PC applications
Prerequisites
You have made the Customizing settings required for the calendar views in the Implementation Guide for Personnel Time Management.
Features
If you drag an ID to the dominant line, the system reacts as follows, depending on the time entry:
Alternatively, you can select a day in the calendar screen area and double-click on a time data ID to record a partial-day or whole-day time entry.
In the calendar views, you can also copy and delete several-day time entries.

You are in the annual calendar and want to go to the monthly view. Double-click on the name of the month.