How can I link to a Panopto video from Moodle?

Two steps:

1. Provision Panopto in your Moodle course by adding the Panopto block. See How to Add the Panopto Block to Moodle Courses.  After adding the Panopto block, students in the Moodle course will be able to access any video that is linked from the Moodle course without having to set share permissions for each video included in the Moodle course.
2. Add a Panopto activity in Moodle.  See How to Insert Panopto Video Links and Quizzes in Moodle and  How to Embed Videos into a Moodle Course.