well, it is possible but what's the benefit?
Well i think the way i proposed might give better predictions -not always
but sometimes.The way i suggested is the way trailing numbers
are calculated in the lotto program "Advantage Plus" ,to my knowledge
the first program to use trailing numbers.
I compared some draws using Advantage Plus and Expertlotto-
Using Adv.Plus 1.draw :2of2 ,1,2of3,1,1of2 top ranked numbers
correct (as i scroll from number 1 to last number in announcing numbers)
Draw 2:1of2,2of2,2of3,1of2 correct
Draw 3:2of2,3of4,4of6,2of4,4of6 correct of top ranked numbers.
Expertlotto Draw 1:4of 14 top ranked numbers(occurences) correct.
Draw 2:4 of 8 top numbers correct
Draw 3:2 of 18 top numbers correct
All tested with 20 draws back.
The results may vary from a draw to the next of course,and from lottery to lottery but i have a hunch that the "original"way as used in Advantage Plus can some times give better predictions.
Hope you find this of interest.