Can one use In-Town check in if the first segment is CX and need to connect to other OW flights later on, but the online check in for those connecting flights isn't open yet during the hours? Or will I have to wait till all segments checked in online and then drop my luggage at the airport later in the day (well after opening hours at HK Station)?
e.g. HKG-ZRH (CX) - check in open during In-Town hours, ZRH-MAD (IB) - online check in not yet open (T-24h)