In Short

The Direct Share feature allows you to quickly copy an individual item to another section of your course or share an item with other colleagues.

Step-by-step

From the assignments, quizzes, discussions, or pages, you can select Copy To or Send To from the Options menu (three vertical dots).

Screenshot of Canvas Direct Share Settings

The Send To option is used to send content to other instructors. You can send the content to multiple users by adding their email addresses in the Send To box. The instructors who receive your content will be notified in their accounts located in the global navigation. From the Shared Content menu, they can use the action option to preview, import, or delete the received content.
The Copy To menu allows you to copy the content to your courses. You can also copy the selected item to a specific module if you wish.

Additional Resource

Direct Share