When viewing a list of tickets that are grouped by some field, it would be very useful to be able to drag-and-drop the tickets between the groups and have that field of the ticket update.

This would go some way toward providing a simple set of tools to support Agile processes, such as a task/scrum board. For example, at a regular (daily) catch-up meeting, it would be easy to group issues (Tasks or User Stories for example) the status and to update the status quickly and visibly. Another example would be managing priorities.

Nice to have: options to prevent drag-and-drop updates from generating emails

Relates to #8016