Hi!

This may be a very dumb question but I am a very new CK user that needs an answer asap.

I want to make a mod that will likely need to use some advanced Papyrus scripting and possibly (I don't really know Papyrus yet) will need some things that Papyrus may not have (e.g. advanced data structures). Is it possible (and easy) to integrate external code through dlls, while still creating a plugin via the creation kit?

http://www.gamesas.com/topic/1356343-wipz-skyrim-script-extender-skse/

Yep, SKSE is your way in.

Which data structures do need?
Papyrus as it is doesn't offer anything besides a very crude array. And that is so bad, no one can really think of implementing anything on top of it.

And how do you intend to implement them?
By writing your own or using the boost/std ones?