How do I add a custom field to an issue in Jira?

If you are a project manager or team lead, you may want to add custom fields to an issue in Jira to track additional information that is not available in the default fields. This could include tracking the progress of a task, the priority of an issue, or any other data that is important to your team. By adding custom fields, you can ensure that all the necessary information is tracked and easily accessible.