Emotion Processing experiment, Sample in Sequence, Test in random

OS - Win10
PsychoPy version - 1.82.01
I am trying to make an emotion processing experiment using facial images. I want to present initial sample images for ample time in a sequence where I’ll be taking a response followed by actual test images (n=40) presented for 10 seconds in random where I’ll be taking responses. I want to understand whether nesting is the solution to this or is there any code that can be used. I am new to the software.

You need to describe your design/procedure more fully. Think the sort of level of detail you would use in a journal methods section.

The query has been resolved. Thanks Michael!