In 2.79 I have keyframes between 40 and 50 and I box select those frames then I grab 1 of the selected keyframe and drag them all to the left or right where I want them.
In 2.80 I have keyframes between 40 and 50 and I box select those frames then I grab 1 of the selected keyframe and it deselect all keyframes except keys on the same keyframe number.
So what is the 2.8 method to dragging multiple keyframes in the same manner as 2.79?