If you have accidentally deleted items in Moodle, you can easily retrieve them using the recycle bin. The following tutorial will show you how to retrieve deleted items.
The import feature allows you to transfer material, such as activities, quizzes, test banks, calendars etc, from one course to another. It is used to import entire Master courses into course shells and to move individual items between course shells.
Availability settings are the recommended method for controlling student access to submissions. This tutorial demonstrates how to manage availability settings.
These instructions describe how to allow users in two sections of a course to all see one of the courses, allowing the instructor to grade and make changes in one course section rather than two.