Hi XIJ
In terms of the items to highlight
2 on Line 1
1 on line 2
1 on line 3
1 on line 5
1 on line 6
2 on line 7
You need to take alternate letters 2,4, 6 etc From the bottom row
Then 1,3,5 from the next row up
2,4, 6 etc. From the next row up
Etc. Etc.
And replace the letters in the corresponding rows in section A
Hope that is clear.