Kobo Side Loaded Books Question

I am not a Kobo owner though I'm considering making the switch. I played around with a Kobo at a local bookstore and was impressed by many of the features, including the way it handled page numbers (the fact that they were dynamic and it displayed the number of pages in the chapter), however, I've heard that side loaded books are handled differently. Since I use Calibre to manage my ebooks, all of my books, even those purchased from Kobo, will be side loaded. So my question is how are page numbers displayed for side loaded epubs in terms of page number? Are they dynamic (as opposed to the useless static page numbers that Adobe forces me to use on my Nook)? Are the number of pages in the chapter still displayed even if they are static?

Thanks in advance.