[Gmsh] Curved Geometry Accuracy

[Bernhard Kubicek]

Hello!
I would like to ask if there is exists a setting that controls the
accuracy of the geometry display.

After opening a step file containing lots of nurbs surfaces, e.g. a bent
tube, things work quite nicely, but the whole thing seems to be divided
into straight segments of tubes. Basically I would like to see more
segments.
Is there a setting or command for this

Very nice greetings, 
and thanks, 
 Bernhard