This is great Michael. The first part goes kind of in the same direction as my experiment.
I managed to use the opacity to randomly show the stimuli at every point on the grid by defining my condition file as stated.
Every image component in the builder gets its possible opacity states (1 and 0) from the condition file. Threre I created columns for every position on my grid and filled the rows with 1s and 0s. There is also a ‘fullrandom loop’ build around it that gives me differentiating inputs every trial.
My problem is now, that even if the order of the opacity of the shown stimuli differs from the order written in my conditions file (which is already great), it does not differ in between the stimuli. So the shown stimuli all change in the same order. How can I make everyone change individually?