The Star tool will draw a star of the specified number of points.

Click the Star button, and select the number of desired points from the dropdown control.

Click on the Star button.

Select the number of sides from the dropdown control.

Click to set first point.

Move the cursor and click to set the end point.

If Auto Align Circuits has been selected under Options, you will see blue highlights in the form of lines and circles when the cursor is aligned with another control point, end point or center point of another object on the design as you are editing. 

If is too distracting while working on the current design, this can toggled off under Options.