I have looked everywhere and can't find a simple answer to this. I want to know if it is possible to do a search with a LONG stopover (say, four weeks) instead of the usual day or so expressed in minutes. There are some great deals where I really want to get out and stay in the penultimate destination and then simply go to the final stop, turn round and head straight home but I can't see how to do this. For example: LHR-HKG-SYD (Stay here for four weeks) - WLG. Then WLG-SYD-HKG-LHR.
If I put in a trip to SYD, then a second trip to WLG, then the third trip back to LHR it costs far more than searching for simply two trips.