Before I go ahead and use a dynamic array instead, is there a number pool object or function in Construct.
Nothing found on the search here, or on the wiki as far as I could tell.
For those not familiar with it, it allows a range of numbers to be stored, which can then be retrieved at random without repetition.
The card game object probably uses the same sort of number pool to stop duplicate cards appearing (I've looked at the Card Game object to see if I could utilise that, but it's not suitable for what I want).
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I'd just use a For loop to add the numbers you want to a listbox, then use a random call to get a line, and then delete it.
I was going to use an array, but using a listbox will save me having to manually shift the numbers down the array and shorten the range each time.