Delete

On the Scheduling | Schedule tab, in the Tasks group: Click Delete to delete the tasks you have selected in the Tasks List or the Gantt. You can also right-click on the selected tasks and select Delete Tasks from the menu.

The Delete icon on the Schedule ribbon

On the title bar of the application window, you can click Undo to undo the last action.

When you delete a task that was added from a source wireframe, the task is also deleted from the cached layer.

One way to quickly select multiple tasks is to right-click on a task and select the Select | All Linked Tasks option from the menu. All of the (predecessor and dependent) tasks that are linked to the current task are selected.

Critical Path

To select all of the tasks on the Critical Path of a group of linked tasks, right-click on a task and select the Select | Critical Path option.