Thank you DavidHI @PJAYAKUMAR I moved your question to general (note for my reference: your question of course refers to https://www.bionicturtle.com/forum/threads/l2-t5-67-mapping-options-jorion.3638/ ) for later attention, because you are asking me to develop a new topic which is time consuming.
About the Greek formulas, it's not a good use of my time, apologies: those are in the material. We're very busy and moving fast to help where we are most needed, looking up formulas isn't a good use of my time. But i'll come back to the new topic you raised if/when I have time, is why i moved your post here. Thanks,