Not quite each one has a different symbol. I got it working now thanks.
I don't see why I should be instructing you in how to use a computer but . . .
. . . most browsers (I use FireFox) or background OS allow you to "hover" over a button with the mouse cursor to see what it's function is. Are you aware of this?
I must have stopped looking at the level of the yellow hatched line. In the FAQ I think they should add in where on the page the button is found and describe the icon.
Now that things have settled a bit I'll go through the FAQ list and learn how to use the forum better.