How do I get to the "more" tab on this site?

TC, when you sign in your "My Account" will show up on the right side of the page. You will see "more" in that box.

Now this shows up on my desk top computer, so I can't guarantee it will show up on the smaller or hand held devices.

It is hidden. Click on someone's question as if you are going to answer it. Then in the box where "My Account" is there is a "More" button. Just noticed that myself as I do not use it often.