Inputting a custom randomisation schedule

PsychoPy version (e.g. 1.84.x): v2021.2.3
What are you trying to achieve?:
I have inserted a loop as there are 54 different movies I want to play in a specific random order. Therefore, I have created a randomisation schedule using MATLAB. I have generated 99 randomisation schedules. Is there any way of adding these randomisation schedules (one at a time) into PsychoPy?

Personally I would probably create the randomisation in PsychoPy.

However, you could have the randomisations as lists of numbers 0 to 53 giving the order of presentation of the movies (e.g. [0,1,2,3,4,…52,53]) and then assign useRows to a specific list based on the participant value. The loop should then be set to sequential.

useRows could even be a list of lists and you could add selected rows as $useRows[int(expInfo['participant'])%99]

Online you could use the Pavlovia shelf to hold the information about available orders.