1. Click Shape in the main tool palette.
2. Click Cylinder in the lower tool palette.
3. Name the object. Naming objects makes them easier to select from the command line. This is nice when dealing with a large scene.
4. Set the U Step, V Step, Revolution, Radius and Length (z) parameters as desired.
5. Click OK to create the shape, or click Cancel to abort.

U Step - The number of vertices circling the cylinder. A higher value makes the cylinder rounder but may take longer to redraw and render. The minimum number is 3.
V Step - Represents the number of rings this cylinder will have. A value of 1 will create a circle.
Revolution - How far to spin the spline which will form the cylinder. 360Á represents a full, closed cylinder.
Radius - The width (x) and height (y) of the finished cylinder. Length (z) - The depth (z) of the finished cylinder.