2. Repeat Step 1 to create a second cylinder, but this time set its dimensions to X=3.0, Y=2.0 and Z=100 meters. [option]-drag a duplicate of this second cylinder to the left hand side of the first. Press [command] G to group the two smaller cylinders together. Select this group, and the original cylinder, and press [command] / to bring up the Align dialogue box. Click on Center in both the Horizontal and Depth axes. Click OK.