Hi Paul, Yes, use a link. While it wont re-open the old thread within this thread, it will enable readers to look back at what you are referring to.
While in the edit/create box - click on the chain logo on the top bar and enter your data like this:
This is a link to my post in the last thread - now with my report on the day.
(a return to this message link is automatically added in the other thread to allow the reader to return here).
73 Ed.