Boundary Boss and Direction

Is possible to determine the direction of the Boundary Boss? I want Boundary Boss direction shown in the video but in my part it is coming in the opposite direction. I tried Lofted Boss as well but it didn’t produce any result. How to fix it?

How to make 'Complex Twisty Ball Geometry' in Solidworks 2016 - YouTube

Time 12.47

SolidworksParts And Features