**As** a Begin of the insertionuser of the team planner or the calendarEnd of the insertion Begin of the deletion project memberEnd of the deletion
**I want to** change the date of work packages by drag and Begin of the insertiondrop End of the insertion Begin of the deletion drop calendar elements in the calendarEnd of the deletion
**so that** I can do the planning directly Begin of the insertioninsideEnd of the insertion Begin of the deletion inEnd of the deletion the Begin of the insertionmodule without openingEnd of the insertion Begin of the deletion calendar view (atEnd of the deletion the Begin of the insertionwork packageEnd of the insertion Begin of the deletion moment I need to make the changeEnd of the deletion in the split view.

**Acceptance criteria**

* Success messages and error handling
* Hover effects for drag and drop
* Moving similar to a bar in the Gantt chart:
* Moving the handle on the left side of the card moves the start date (duration changes).
* Moving the handle on the right side of the card moves the finish date (duration changes).
* Moving the card in the middle moves start and finish date (same duration).
* Ability to drag/drop work packages across assignees to change assignee (specified individually in work package <mention class="mention" data-id="39500" data-type="work_package" data-text="#39500">#39500</mention>).