The explore map only gives availability for a month - not a date.
It doesn't tell you whether that availability is out or return.

So if I want to find a reward ticket in U or Z on 28th March then I have to select each destination and then select the month to see whether the availability is for my date and direction.

Whereas what I'd like to do is say enter a booking class and date and for all the routes with availability to be displayed.