Another realization I had was that while working with the Transform of an object, there’s no apparent end of the track to grab on to. To fix this, if you right click on the track and choose Properties, you’ll see that there’s two greyed out text input boxes for the Start and End Time. Clicking the lock icon will allow you to specify a start and end instead of the track being infinite.
Just type an arbitrary number that is less than the end/more than the beginning of your Sequence. Then you can manually adjust the beginning and end by left click dragging. This is how you can easily anchor your start or end keys so they don’t get scaled inadvertently.