The following elements can be ordered via drag and drop:

• Project shortcuts (expanded project sidebar only)
• Post functions
• Conditions
• Validators
• Resolutions
• Priorities
• Statuses
• Dashboards
• Custom select list options
  • Checkboxes
  • Single select options
  • Multi-select options
  • Cascading select options

Pick the item you would like to move on the left-hand side: Dots show you where the item is pick-able. 

Head over to Dashboards → Manage dashboards

Head over to Jira administration (cog icon) → Issues → Priorities

Head over to Jira administration (cog icon) → Issues → Under issue attributes → Resolutions

To learn more about what you can do with the drag and drop functionality, visit the following pages: