Copy/cut and paste is a handy way to move issues around.
When you copy or cut issues (with toolbar button or Ctrl+C / Ctrl+X (Command+C / Command+X), selected issues are put into Issue Clipboard. When you paste with Ctrl+V (Command+V), issues are added after the currently focused issue. You can use Ctrl+Shift+V (Command+Shift+V) to paste issues from clipboard under currently focused issue.
While drag and drop is nice and visual way to rearrange issues, it might get tedious if you have to drag issues across long distances. Copy and paste solves that problem perfectly – copy issues to clipboard and scroll through the structure looking for a place to paste issues to.
See Selecting Multiple Issues for details about multi-selection.
Copy / Paste Scenarios
There are two main scenarios for using the Issue Clipboard:
Please note that if you really have some text selected on the page, Copy/Cut/Paste keyboard shortcuts would operate on that text – you'll get a copy of the text in the system clipboard, and Structure clipboard will not be affected.