How to add annotations to videos

Determine which video you wish to annotate, choose "Select Video". You can change videos at any time.
Determine objects you wish to add to video. Choose "Add Object" > select annotation object
Determine "when" each annotation object should be displayed during the video. Drag on annotation object bar to move along video timeline.
Export video - this will output a new video file containing your annotation objects.
Save markups so you can easily reuse / edit these annotation objects in the future.