Maybe I'm missing something, but MacroQuest doesn't appear to have any native support for ADTs (stack,list,queue,deque, etc...). Are arrays just typically used for everything? Has anyone implemented a list like structure or something similar?

I have seen a priority queue plugin, but not publicly.
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Sorvani

You're not missing anything as far as I know. There are some extensions that add more advanced loop control structures but I don't recall seeing any advanced data structures out there. I imagine the reason is that when someone has the knowledge to even desire such a thing, they maybe end up writing plugins instead... it would be cool to have the option though, It would be a lot of work for something that Very few would use.