stimulus list - no repeat of items

I am creating an experiment in SL4.5 where the participant presses a key based on the category of word displayed on the screen. The experiment uses a list of 30 words presented one at a time. I have created a stimulus list of the 30 words and assigned code values to each word based on its category.

I can get Superlab to display the words from the list in a random order but I don’t want any repeats. I would like each word to be displayed only once. Is this possible with a stimulus list or would I have to create separate events for each word on their own?

What you are describing is actually SuperLab’s default behavior: each item in the list will be presented only once.