How to use a measurements template

Open a first image and make all measurements; save it as a Digimizer file (*.dgz). This will be your template.
At the top right of the image area there is a button that shows a drop down menu. In this drop down menu you select "Change image" and this will replace the image with the new one, but keeps the measurement objects.
Edit the measurement objects so they fit the objects in the new image.

See also