Multiple Stimulus Packages

I’m trying to conduct an experiment using facial images. I have an “educational trial” where ppts can practice their understanding of the task, and then three seperate trials where images are displayed for various times. Now the education trial uses a different stimulus set as do the other three experimental trials. However, when I select the education trial in the event editor it then changes all experimental trials to the educational stimulus set. and so on if I choose one of the experimental trials.

So how can I get 4 stimulus trials?

Thanks in advance

It’s hard to tell without more information, but it sounds like you need to have different trials for the different sets (and correspondingly different blocks as well).