How to make stimuli randomly presented at the top and bottom of the screen

I recently wanted to do an experiment on up-down metaphors, but wasn’t sure how to do it in coordinates, and how to encode it in a way that would allow the series of stimuli in the experiment to be randomly presented one by one right above or right below the screen. Can you help me with this? Much appreciated!

demo.psyexp (12.4 KB)
conditions.xlsx (8.4 KB)
Hi, here’s a minimal demo I’ve created that should do what you need. Hope this helps!

Thank you very much, it has solved the problem in my mind so far!