Hi Cecile,
One solution is to move your test at the beginning of the trial, so that you immediately end it as soon as it starts if the right conditions are met. This is what I illustrated in this post.
Also, if you want to re-run the same list of trials a given number of times, you don’t have to create duplicate entries in your table: simply reference their labels multiple times in the Sequence command.
Here is a project to illustrate what I said: https://farm.pcibex.net/r/txQFla/
Let me know if you have questions
Jeremy