Hey Anton, great questions!
Yes, it is definitely possible to change the word events to something else, like magazines. In fact, we have a handy little tutorial on how to do just that. 🙂
And, yes, Events Calendar PRO does include a feature that allows you to add extra fields to events so that you can capture custom information about each issue. Additional fields are a great feature in PRO and you can read up on them more here in this article.
Does this help answer your questions? Please let me know if you have any others and I’d be happy to help as best I can!
Cheers,
Geoff