Reports API Events
progressed
Fires when the learner has navigated to another Item when using the live progress report. This report is primarily for monitoring learner progress during proctored assessments. It is updated based on live interactions of learners with their assessments in real time.
You would want to be notified about this event firing to take some action when the learner has navigated to a new Item in the assessment, for example.
Examples
reportsApp.getReport('my-live-report-id').on('progressed', function () {
console.log('This code executes when the learner has navigated to a new Item.');
});