You can make annotations that appear in all training sessions in PathoTrainer directly.
When you are Creating a Case Collection or Editing an existing one, you can click on the image or the Annotations button for an image in a case to modify annotations:
Clicking either will take you to the image configuration menu. Here you will find a few tools:
When you are done editing your custom annotations, be sure to hit save.
Not a problem - check out custom interaction modes to define an interaction mode in which only annotations made in your session will appear