UI Slider Tool 
The
UI Slider Tool allows you to insert a scale on top of your image.
Click on the UI Slider Tool and drag 'n' drop it onto the
image viewer. A 0 - 100 scale will appear. You can move the
scale around, change the size, stretch it out, as well as rotate it, by
grabbing the smaller boxes along the edges.

Right-click on the UI Slider rectangle to bring up the UISliderEntity edit box. Selecting the Rectangle
tab allows you to enter specific
values for the UI slider entity rectangle used, including center X, Y,
width, height and aspect of width/height. After entering your
values, click Apply and then Close. The UI slider will be adjusted
according to the selections.
UILineEntity_image
Selecting
the Entity
tab allows you to adjust the colors, thickness and
visibility of the UI slider profile marker. You can also select a
Coordinate System. Make the necessary adjustments click
Apply and then Close. The values will be updated according
to
your selections.
