This plugin works by allowing some users to schedule course duplications. These are then processed asynchronously by a Moodle scheduled task which will perform a backup and then a restore of that course in the requested category.
The advantage of that approach is that users which do not necessarily have standard backup and/or restore capabilites can be allowed to perform course duplication on their own.
Two capabilities are used to control who can duplicate courses:
local/courseduplication:backup_courselocal/courseduplication:restore_course
Course duplicator role: Allows to define a default role for the user responsible for duplications
You can force the tasks to be executed from the commandline via:
/opt/orchestration/bin/php /var/www/html/admin/cli/scheduled_task.php --execute='\local_courseduplication\task\process_duplicate_queue'
This plugin was developed by Liip AG https://www.liip.ch/, the swiss Moodle Partner.