When filtering for Earnings Date, include stocks where the earnings date is empty in the results.

Ex. Ron Wheeler (and others) look for stocks whose earnings date is more than 3 weeks away. In Unisearch I'd like to: Earnings Date >= 21

Many stocks do not have the earnings date filled in. This filter should return all stocks whose earnings date is known and is >= 21 days out as well as stocks whose earnings date is not known (implying the earnings data has not been announced and is likely further out)

As it is, this filter is almost worthless because it only returns stocks whose earnings data has been announced (and most likely within a few weeks away)