As an admin I want to be able to create a report on Confluence Task Lists.
Currently it's not possible to report on Task Lists as there is no supported Supplier.
In the past the Task Supplier (depreciated) was available to report on the legacy Tasklist macro, but since Confluence 5.4 that macro has been removed and replaced with the new Task List.
The only workaround now is by using the built-in Task Report macro to report on Task Lists; but its functionalities are limited. It would be great to have a new Tasklist supplier so more complex reports can be built upon that.