left click to activate ruler tool, right click stops ruler tool

73E0.00
74E0.00
75E0.00
76E0.00
77E0.00
78E0.00
79E0.00
81N54.00
82N0.00
82N6.00
82N12.00
82N18.00
82N24.00
82N30.00
82N36.00
82N42.00
82N48.00
white: 25m
black: 50m
magenta: 100m
cyan: 200m
yellow: 500m
blue: 1000m
green: 2000m
red: 5000m
cursor
glider
ruler
dive tail
enable KML

BESbswy