To import content from one Canvas course into the course you're working on, click on Settings and then Import Course Content.
Choose Copy a Canvas Course option.
Select the course you would like to import by typing the course title in the search field. Choose either to copy the entire course or to select specific content. Check the option Adjust events and due dates to change due dates or leave the option unchecked to change due dates at a later time. Click Import.
If you chose to Select specific content, click on the Select Content button to choose the content you want to import and then click Select Content to finish the import.
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