Add date filter

[mcauser]

I've mapped my surrounding neighbourhood and now months later there's lots of new hotspots.

Would be nice to have a date filter so I can hide/toggle mapping data older than say a month, so I know where to re-map.

[l34rn3d]

I would love to see a date filter, or a heat map layer.
Ie. Green fade to brown. Similar to the earnings filter on explorer

[proudcanadianeh]

I would just like to chime in that I would also love a date filter, or some way to see what area's should be re-mapped.