Yes, it is in Lightroom. You will see the Lens Correction tab on the right hand side when you are in Develop. Click on the word "Manual", Check the little box that says constrain crop when you make the adjustments. Horizontal adjustment is used to make any horizontal lines in the image run parallel to the top and bottom. Vertical is used for vertical lines. I find it pretty useful as sometimes no matter how well I line up the camera using a level lines still are out. It seems that the world is a wonky place!