How to stretch lightroom pictures

Take LR5.0 as an example: enter the "Modify Photo" mode, select "Manual" under the "Lens Correction" option on the right, and then drag the "Aspect Ratio" slider. Pulling to the left will widen horizontally, and pulling to the right will lengthen vertically. In LR, this adjustment will not damage the image quality, so there is no need to make adjustments in other software.

In my impression, LR4 was manually adjusted, but the earlier version seems to be gone.