You have drawn a five-pointed star in a design and want to change the inner radius. How would you achieve this?
Double-click the Star tool and change the Inner Radius option.
Select the inner points, then use the Scale tool to uniformly change the radius.
Use the Scale tool while holding down Option+Shift (Mac) or Alt+Shift (Windows).
An Inner Radius of a Star cannot be modified and would have to be redrawn.