In order to create a new task, follow the steps below:
In any view tap&hold on the empty space of the calendar and start the title with Space. The event will turn into the task.
You can create or set a task for Today by adding a star to it. Once the star is added, the task will appear on the current date every day, unless you remove the star or complete it.
You may also reschedule tasks in the Week and Month View by drag & dropping them.