Marker between trial 1 and trial 2

Need a way to mark the beginning of the second trial in the annotated data (when the experimenter compares the model and the copy, tells the child their structure is not the same as the model, and asks them to try again). This should coincide with flipping the little pink/blue card on the table from Trial 1 (blue) to Trial 2 (pink), but it is not currently annotated. I have been adding a note when trial 2 starts, but this needs to be integrated with the rest of the annotation.