Choose Create, Curve, Curve Slice.
Curve Slice ribbon bar
|Use this ribbon bar to create curves on surfaces and points on curves. Set all the options on the ribbon bar, press [Enter], select the surface, and press Apply. While the curves or points are live, you can change any of the settings and watch the entities change dynamically. When finished, press [Enter] again to fix the curves or points.
Note: AutoCursor is unavailable during the use of this ribbon bar.
A – Plane
S – Spacing
T – Offset
J – Join
F – Find multiples
P – Apply
O – OK (fixes live entity and exits function)