Selecting Multiple Items (e.g., counties,states) From a List

Selecting multiple items - Here's how:
a. Go to the first item (e.g., county) you want & left-click on it.
b. Scroll to the next item you want and then, while holding down the CTRL key, left-click on it. Now two items are selected.
c. Repeat step b for as many items as you want.

Caution: If you ever forget to hold down the CTRL key when left-clicking, you'll "unselect" all those you've already done & will have to start over.