I annotated entities in the Preview window. How can I save the work progress?

The Preview capability is meant to enable the user to test drive the ontology before it is used on a record. The work cannot be saved or returned to at a later time as all activity is recorded in memory and reset with every new update made to the ontology. 

The user may, however, click the Download button to export the results of the test drive to review what the task output is expected to look like for the first 1000 frames.