I created a packing list for traveling and it contains about 40 tasks. This was inspired by the Tips & Tricks post of Nov 24. I don't want to modify my packing list I want to duplicate all the tasks and move them to a list for a specific trip. When I select all the tasks and then pick Duplicate from the pull down menu an error box is displayed that says "You can only duplicate 25 tasks at a time."

Why is there a limit on the number of items that can be duplicated? Is there a way to duplicate an entire list?