Does the map no longer have the option to display only nonstop flights? The way I have done this in the past is look where you can fly nonstop from the actual destination and then look at where you can fly from your current location. Note that you will likely end up booking a domestic flight to and from the intermediate location and then looking around trip on the international portion. There are some gotchas that you should be aware of with combining two reservations. This is especially true if you were trying to do a same-day return.