First, thank you for taking the time to check out my very first tutorial! I'm very grateful. I hope this helps you find solutions to your bewilderment or altern...
I'm very pleased that my tutorial helped you out!
Looking back, there are some easier ways to go about this - namely by using the choose( ) action (something I didn't learn about until much later after writing this).
Choose( ) works basically like this:
[event] : action - choose (option 1, option 2, ... option x). So you can actually specify a specific number of options that are randomly selected from. In hindsight, I could have just told it to do choose(animation 1, animation 2, animation 3) and it would have been so much simpler. The Array wouldn't have been necessary.
I hope it all works out for you!