Note:
While I prefer to use the blue disk to copy the chat and update it from time to time as that allows me to read back all the way to the beginning of the chat....
I forgot to mention that there is a little ANCHOR icon just above the SEND tab at the right end of the reply text window.
Clicking your cursor on that anchor will stop the chat from scrolling so that you can read back a few lines. (Chat normally bumps / scrolls forward as each peson posts, making it impossible to read back. This option stops that.) Be sure to unshade it, allowing chat to scroll again.
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