How to respond to an answer on this forum?

[farlinoff]

Hi, I am new to this forum and have already posted a question which I have an answer to. I would like to respond to the forum user who posted the very helpful answer. I cannot figure out how to do this, would someone please assist. The user who responded to my question is Blaunarwal (Dan)
Regards, Trevor Farley

[WarpD]

Uh... the Post Reply button that shows in the thread you want to reply in.

[farlinoff]

Hi WarpD, Thanks for responding to me question. The problem I had with another response was that there was no Post Reply button.

[WarpD]

Then the thread was locked.