do you mean the covers that cover the slot where you'd put a cd drive?
i suppose with some of your own custom case modding of sorts you could put a fan there but i personally wouldnt do it. you'd need some kind of perforated cover to go on the outside so that you dont like, accidently put something in it to cause it to break and possibly damage your internal hardware.
did you mean this?
1782 Galaxy Black Midi Case with Blue Bubble Light LED Strip 450w PSU
it looks like that case only has room for 4 fans and since you say its not for gaming, your hardware shouldnt generate that much heat i think.
its up to you though, theres more cases for a lil more money that look like they offer better cooling.