Position tasks

From the task table

Change the value in the Start Date column. This shifts the task in time, changing the task's start and finish date, while keeping its overall working duration. For example, a two-day task beginning on Monday and ending on Tuesday (two calendar days, two working days), if moved to Friday, now ends on Monday (four calendar days, two working days).

From the Gantt chart

Click the center of the task bar and drag it to a new position. Your mouse cursor changes to a four-headed arrow, indicating you can click and drag the entire task.