Originally Posted by
gloopy
Not sure what you're asking. Are you trying to drop a trip or reserve day(s)? If you are swapping day for day with trips (as long as your swap isn't creating or exacerbating a below coverage situation) you should get it approved. You can usually APD with less than 20/20 coverage (once a year). In either case you can pick up on days you had off earlier in the month regardless of staffing.
Not 100% sure but I don't think you can pick up flying on any days that an APD touches.