GUI filter - no Priority, no Project, no Context, no ...

[aisbergde]

GUI filtering - inversion of entries is already implemented. For example, I can exclude some priorities, some projects, some context and so on. But to exclude all possible entries is hard. It is even impossible, because new entries could be added.

Therefore, it would be fine to have everywhere an additional entry "no", which will be virtually assigned to all tasks, which doesn't have explicit entries.
no priority, no project, no context, no due date, ...