Can't figure out how to resize a mask uniformly. I'm working with a vertical image and I cropped it using the mask tool. Now I want to refine the mask by cropping the sides a bit. I thought I had figured it out by right-clicking on the image, selecting Mask and Path Shape, then selecting Free Transform Points. That allowed me to do exactly what I needed to do, but when I came back to it to further refine the mask, the feature is grayed out. Not sure why.