Unanswered questions

Hello Docebo Community! We recently implemented Docebo Learn LMS and as part of the implementation process, course shells for previous learning sessions and e-learning modules were created and the course completion data was migrated over for our users. We want to hide these course shells from showing up in the search on the platform, as there is no training/learning content associated with them, as it was for historical/archival purposes only. How can we do this? Thanks!!