I had to click on "Type", but that brought up "Specific Codes", but it was a short list.
So, I went back to that "Find and Replace" box and tried the other menu choices.
The one after "Type" is "Match" and it has a menu choice of "codes."
When I clicked on "codes", I got a complete list of codes, much longer than under "Type" "Specific Codes."
Under "codes" under "Match", I found in that listing the code for a Hard Return, HRt.
And as you said, two clicks on it put them in the "Replace Box."
Oh Happy Days. I clicked "Replace All" and got rid of over 400 occurrences!
Thanks again for your reply. It led me to looking further as I showed above and Bingo! I don't know why WP put in only a partial list and didn't indicate where to find the entire list of codes, but I know now.
I've detailed this so that anyone else who runs into this will hopefully see our correspondence and find these answers depending on the WP version they are using.
Thanks for reply. But, following your instructions, I don't get a "codes dialog box." I am using WP X3.