How do I thank all of the kind helpful people who answered my question? I had several great answers!?

Answer 1

Click on their name and see if they have an e-mail address and tell them using that or see if they asked any questions which are still open and you can leave an answer that thanks them. When you choose a best answer you have to write something, so you could write that there were other good answer to and thank them, but the people might not come back to the question to look at that.

Answer 2

Done

Answer 3

You just did.