Round trip with offline LoRouter

I suggest to implement round trip calculations with offline router(brouter or Lorouter), because this is actual usage scenario in many situations.. not having internet (for GrafHopper engine) when in mountains and cannot always plan ahead (ad-hoc tours)

Also... would be nice to be able for Locus to generate alternative round trips from the beggining ,to be able to choose the desired route in the direction I want (not only radius from start point)..This can be accomplished by allowing user to add at least 2-3 intermediary points to be part of the calculated round trip