My project has come along in leaps and bounds since I got a little help this morning. I am sure this is a matter of not knowing what search terms to use to find tutorial help, but this is what I need:
You can easily Trim your Clips in the Timeline. Just click+drag on the Clips' Head, or Tail, and you will be Trimming it.
Now, you can use the modifier key Ctrl, to modify what happens with other Clips on your Timeline, when you do the Trimming. It just depends on what you need.
Thanks Bill! That's exactly what I needed to know.