why would you want to use arrays?
I only ask as I haven't found the arrays to be particularly helpful. They're only 1 dimensional, which means that to store any significant information requires several arrays running in synch. In addition, all access is through formulas and having to loop through the array.
I have found (and this just my opinion) that delimited strings seem to take about the same amount of work, are more flexible.
It's not that I am against arrays, but the fact that they are just a label (let's say) and don't include something like the recordID to link to in another table, just make them basically list boxes...very primitive.
That is not say that using them as a list of what has been displayed or for various other purposes can't be done, it just requires you to do the record keeping because CR can't.