I must be missing something so apologies.

I have a list of calls to make so have set task for each lead to call.  No problems there.

Now one lead says to me "call me back at 10:00 am on Thursday"

How do I do that?  The only way of doing that I can see is to set an event?

Is that correct.  An event is time based and a task is not? Come to think of it why cant you have just one definition and it either has a date or a date and time. Even having a date is unnecessary as you could set a unit of work to be done "sometime next week"

And please when can we have tasks shown on the calendar, then we can drag and drop to plan our day.