Hex grid G
Locations L
Measure M click 2 points
Calibrate grid C for hex ruler
Calibration result

    
  
px → 0, 0
Keyboard shortcuts
GToggle hex grid
LToggle locations
MMeasure (ruler)
CCalibrate grid
XClear ruler
TToggle Layers & Tools panel
FToggle fullscreen
EscCancel tool / close this
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