Tips and Tricks
Check out this video on Time Control in Tacview:
Displaying Position - Longitude/Latitude or MGRS, Altitude, and Bearing to Bullseye(s)
From Options → Position, choose how you prefer your position to be displayed.
From Options → Units, choose your preferred units
Then in the 3D view, hold down LCTRL+SHIFT to turn your mouse pointer into a laser pointer. The position of the laser pointer will be displayed in the top left corner.