One way to delete several selected issues at the same time is by using a bulk issue edit operation. You can read about that here: Editing multiple issues at the same time, Atlassian Jira Core Support.
Hope that's a good place to start!
Over the weekend, Atlassian ran a New York Times ad calling on business leaders to join us in committing to a net zero future through the Science-Based Targets Initiative. As part of our gl...