I have noticed that many of us do not understand the EDIT
button.
This button
allows you to go back to your original post or reply and make any corrections, additions or deletions within the post. I will cover deleting the entire post or reply later.
You will see this
within the same area as the
Posted - Date ; Time
Click on the
The Original text will appear and it is here that you make the changes or additions.
Click on
"Post Changes" and you are done.
ON EDIT: I don't believe it but I had to use the
to correct 2 spelling errors.