[new_horizon]

Hi All,

I am running an experiment where participants will see a number of vehicles move towards there viewpoint.

With the help of Farshizzo (thanks), some gridlines then appear and I want the participant to click in the grid that they thought they saw objects approaching them.

My questions are...

1) Is there any way of setting up "zones" that correspond with the gridlines?
2) How would I go about setting up a range of coordinates that indicate a particular response?

Best wishes.

Mark