You’ve just created a Blend between two shapes by selecting both objects, then switching to your Blend tool and clicking once on each of the two objects. You were hoping for a Blend with six transitional Steps, but ended up with a smooth Blend between the objects. Is there a way to change the number of Steps without starting over again?
One of the nice things about Blends, in CS2 or CS3, is that they act like Effects, which can be very easily changed at any time. To alter the number of Steps in a Blend, select the Blend with the Selection tool (V) and go to Object > Blend > Blend Options. In the dialog that opens, press the button in the Spacing section and choose Specified Steps from the pop-up menu. Type in the desired number of Steps and press OK.
Tip provided by Jeff Witchel, Certified Adobe® Training Provider.