Hello Everybody!

I have a simple part sketch (attached screen shot). Notice the small rectangle at the 12:00 position is not centered on the center line.  I did at one point select "something" and could manually move it over...I cant remember how I did it.  I feel confident there are many ways to do this.  How can I get SW's to move it for me so it is perfectly centered horizontally, while remaining in the same vertical position; basically move the sketch over to the left half way.

Thanks for everybody's time!

Charles