The icons above is Zoom in, Zoom out(under Preview, can use the mouse wheel
to zoom in or zoom out), Mirror, Flip, Monochrome, Wide dynamic, Freeze, Grid,
Font color and size adjustment, Static and dynamic image contrast, 4 images
contrast.
Measurement
Click the Measurement button, the menu
will pop up. It supports about 20 kinds of
measuring tools. Click the Edit and write
the name of Calibration. Move the mouse
to draw a line that compatible with the
standard scale. And fill the value in the
Length. Click Save to finish the calibration.
If you want to add more, please repeat the
operation above.
（
Click mm/px to turn
on/off scale
）