Specify options in the Control Bar.
Define the cylinder by clicking two or three points on a View window depending on the Define option.
The Cylinder tool has the following options:
Define - How the cylinder is defined. The choices are:
Center & Radius
Center & Axes
Corner & Corner
Three points in arc
Center & Corner
Filled - If not checked the top and bottom lids of the cylinder are not created.
Arc - If checked creates a cylinder sector
Center - If checked, the top will be centered over the bottom.