In Yodiz we offer 3 quick ways to reorder users stories in product backlog.

1. Drag any user story and drop to new position.
2. Click on priority position # (first field of user story row), enter new value and user story will be moved there.
3. Click on settings icon at end of user story row and select "Move to Top" or "Move to Bottom", this will move user story at top or at bottom of backlog.

Note: The order in backlog represent it's priority. The top most item is of highest priority and normally should be implemented first.

Example is shown below