Hi @JohnF976 at this time having the ability to search/filter by Country, Source and Custom Fields has not been carried over to our updated contact management dashboard. It is however a feature request we would be happy to track feedback on! In fact we have opened up this idea so other users can weigh in as well.
The good news is commenting on this thread or liking the thread in the top left-hand corner are equivalent to voting! The more requests a thread like this receives the higher of a priority it can be given.
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