Trainers should be able to export either

• the current state...
  • without the action history (= snapshot)
  • with action history and initial state,

or any combination of

• the existing viewports,
• the patient templates,
• the vehicle templates,
• the mapImage templates, and
• the tileMapProperties.

When importing such an export

• a new exercise should be created when the state is included, or
• for the other points offer overriding or appending existing data.

There must be something to handle id clashes.