using stimulus list

Is it possible, to show a certain number of event(7-13) from one stimulus list(8items)?

I am having a trouble building a task switching experiment because I have to present different numbers of events(min7-max13) everytime the task switches (and these come from one stimulus list)

hope you understood the question as it is very important for me.
Thank you in advance.

I have attached an experiment that demonstrates such a design. Please read the included notes.

Two parameters are used, Presentations and Trial Count. The first is given a random value from 7 to 13 before each block and and the latter keeps track of the amount of trials presented. The key is to only present the stimulus list items while Trial Count is less than Presentations.

Feel free to ask any questions.

variableListItems.sl5 (5.16 KB)