the answer was like this:
Quick add does not yet support the special syntax, although this is planned for a future update. Quick add was designed as a way to quickly add several tasks with the default values for the other fields. You can type and press enter to quickly make as many tasks as you need. If you want to specific the fields for a new task, press the "Add Task" button to the left of the quick add box instead.
still there is no sight of this feature, so could you please share your plans on it in nearest future?
Still wouldn't it be possible to do the same - send notifications from server to customer application about due dates about to happen (or that it has just happened)?
I have several monthly tasks and if I don't happen to open toodledo on daily basis I usually miss them by day or two which is frustrating really.