Hey dvbridges,
Thank you very much for your attention, with your advices (and also Cesco and Michael) I managed to finish my task and it is working really nice.
I couldn’t use the reset resource, but I figure out another way without using it. I don’t want to bother more but if you have any suggestion on written material about psychopy (other than the book and the manual) just let me know.
Thank you very much!
Best