Psychopy and EyeLink integration: data viewer

I built an experiment in psychopy and it should be integrated with eyelink 1000 plus. It seems that everything is working but i have to fix one thing: I would see in edf data file the stimuli presentation with psychopy in order to have markers during trials. Indeed now edf data give me the pupil size and other params but it is not possible to integrate eyetracker data with psychopy stimuli presented during the experiment