Option + drag keyframes like in After Effects to change animation speed???

In After Effects, to change the speed of a bunch of keyframes you can select all of them and then option drag them left or right depending on if you wish to speed up or slow down the overall animation speed. How would I do this in Premiere Pro? When I select a bunch of keyframes and I option drag them nothing happens in Premiere Pro. What am I doing wrong or missing? Thank you very much in advance for any help with this.