Mass-delete identical points from map view

[ajpanton]

In the map view, clicking on a point brings a window with a "Delete" button. I'd like to also have a "Delete all" button that deletes all points that have identical coordinates (within the visible time range).

Some points are sourced from Wifi or cellular, and those can be very inaccurate at times. Often there are some very specific discrete locations that are associated with these sources, so I might have tens or hundreds of points with identical coordinates. If one of these locations is so wildly wrong that I want to remove all instances of it, it's a lot of work deleting them all one by one. I could look those up in the points tab, but that's also of limited use as one can only filter points by time.

A "Delete all" would help in this case, deleting all instances of a specific location. To be safe, it should only delete points that are in the currently visible time range.