edge blending

 From:  Lemo (LEMONNADO)
1147.1 
I cannot find an option to blend surfaces or smooth transitions between two surfaces...
What I have is two surfaces build from 4 curves each (network) where each surface has the edge/curve in the middle between the two of them in common. Like a rectangle divided into two squares with an edge in the middle of the rectangle. Now, there is a very sharp crease. Is there a way to smooth the transition between the two surfaces where they share the same edge as base for that particular side?
Cheers
Lemo