New mouse scroll on source fucntion

Hey guys I just updated to the latest Premiere and I have lost my mornig trying to figure out the new and "improved" scroll funcionality on the source panel. Before this version the scroll would allow me to scrub throught the footage and easy drop my keyframes as needed, now it completely disconfigures the size of my window and if i want to scrub I have to drag my mouse to the bottom in order to do this which means more time consumption. This was a terrible idea and I wish that there was a function to revert back to the old way for those of use that prefer it. Extremely frustrating have to re-learn something in the middle of a project. Every editor in the building updated today and we are up in arms about losing our morning over this.