Submenus
View/Hide Measurements
By default the measurements are drawn on the image along with its labels, but both them will be hidden if this option is unselected.
View/Hide Centroid
Each measurement Centroid is displayed as a cross, but if this options is unselected, it will be not shown.
Labels Display
Show Ellipse/Rectangle
Ellipses and Rectangles can show only the area, only the height and width
or both measurements in its labels.
Only area
Area, height and width
Only height and width
Multiple Segment Tool
Show Area
Show Perimeter/Length
The options are to show the area or the area or the perimeter/length. If the polygon is not closed, the length will be shown in all cases, since area cannot be calculated for an unclosed polygon.
Show measurement only
The Measurement Labels can display the measurement value, the measurement
name, both them or nothing.
When displaying the value, it will be shown using the decimal positions
specified in the Measurement window Decimal
positions text box.
The 
counter tool either will display the counter number or nothing, if Don't show
anything is
selected.
If Show Always the real size is unchecked, the measurement's Labels will be reduced when the zoom is less than 100%, and hidden completely, when the text size is too small for reading; otherwise (when checked), the measurement's Labels will be displayed always with the same size, no matter the zoom.
To move a Measurement Label, by dragging it with he mouse, select the
measurement with the Measurement Selection Tool 
, right click and then select
Move Label in the pop-up menu. The Move menu shown to the left only tells
how to move a measurements but doesn't perform the movement.
Show feature name only
Show both feature name and measurement & Name
Don't show anything
Show Always the real size
Move
Merge measurements (flatten image)
Merges all the measurements with the image.
After measurements become part of the image they cannot be separated or modified in any way.
If the image was not saved you can use Revert to saved to get back the measurements (as editable objects, separated from the image background), but if the image was saved after merging the measurements, there is no way to get back the measurements.
Clear All Measurements
After asking your confirmation it will clear all the image measurements.
Clear Selected Measurement
Del
After asking your confirmation it will clear the selected measurement.
Use this command to clear the gaps that appear between measurements numbers after deleting measurements.
Each new measurement is numbered sequentially starting from 1 and each different kind of measurements has its own counter.
Warning: If the image has several series of counter measurements, all having similar numbers, they will be converted to a single series, with sequential numbering without duplicated numbers.
Note: Only the counter tools
allows resetting manually its counter, by right clicking on the
counter icon,
Cancel Measurement
Cancels the measurement that is being edited or done.