I want to have the option to sort my"All Tasks" by lists, so each set of tasks from each list are grouped together by their list. I know this may be an odd way to want a master list (you can just look at each list), but I have many lists, and it would be helpful to, at least at th start of a day, scan a list of all tasks grouped by project (or list).
Any additional filter/sort options would be good!
Sort by list or project is essential. Ideally, you should also be able to select how many of the tasks from a project are shown, just the next item, or one or more. But sorting by project or list is a very basic function that ToDo should have.