Originally Posted by
onaemtnest
It is difficult to see, I know :0) After you select all the messages you want to delete scroll down to the bottom of the messages, not the bottom of the page. Where there is a blue/turquoise box that says "selected messages", it is very hard for me to see but next to the word 'selected' you will see a down arrow (it helps a bit if you scroll the mouse over the word selected) and when you click on that down toggle/arrow you will have a drop down which allows you to select the marked messages and delete all those you've marked at once.
Ding... ding... ding... We have a winner!

Thank you Onalee... Could they have hidden it any better?