The reason, also for the newbies who perhaps has come a long way in creating Channels and Buckets, but find themselves in a mess.
Then, a useful mechanism would be to have the Author to be able to Move Buckets (with Tasks etc) from one Channel to another.
Another reason for being able to Copy (or Move) Tasks, would be when they were created in a wrong Bucket !
Then, alot of effort is ahead, if you detect this looong time after the Task List (multiple Tasks) is growing in numbers.
This feature is still in the works. No additional details are available at this time.
Thanks, and File URLs (assuming the notation : \\server\<sharepath>\<file>.<filetype>
would be of great importance.