Thank you theducks
Thank you GRiker
I appreciate your explanations very much.
theducks: I am afraid I am not very competent to do such sorting in Calibre.
Maybe a better component or ad on could be included in the upcoming versions of Calibre
Sorting in excel sound like the easiest way around I think.
(I did not know how as I was using not the MS Excel)
I managed to do it just now.
So if there's a way I could get the output from calibre, I'd like to hear about it.