Please add the manual sorting task and projects

In the case group by start ime - full manual sorting tasks. this will create a list of tasks in which the tasks will be located in a convenient way to perform. And it will be more convenient than manually set each time.
In the case of group by project - manual sorting within the project

In the case of group by context - manual sorting within the context of

In the case of group by context - manual sorting within the context of

In the case of group by the deadline - allow swap tasks it with the same deadline

Manual sorting should be preserved.