Greg, it seems that you would like to have a private conversation with another poster–which can be done by clicking on that poster’s avatar and then looking for the heading that invites you to start a conversation (there is one poster, though, to whom I have wanted to send a PM, but there is no heading that allows me to do so).
Or, Greg, you can quote the post to which you want to specifically reply–after my previous post, I re-read yours and decided that I had misinterpreted yours.