Groups
For efficient work, timelines and tasks of several elements can be grouped. This allows you to conveniently move related timelines and tasks in case of planning changes. If you select or move a grouped task or a grouped timeline, this also selects or moves all of the objects that belong to the group.
Note
You can only add tasks to a group, but not jobs.
Note
You can create, edit, move or cancel a group only if you have access to all planning activities whose tasks and timelines are assigned to the group.

You can also reach the functions via the Group Manager. Here, you can move tasks or timelines in a group easily, for instance. You can use the Selection Assistant to gather tasks, timelines, and groups that you want to manage in the list view. The Selection Assistant is especially helpful if you want to manage objects in the list view that are not displayed together on the screen.