Hopefully this will stop the chain.
See the linked questions if you want more background, but I need to conditional format multiple rows (2,000+) from the FIRST (leftmost) non-blank cell + the next 11 columns after it. Not sure if it's needed for the conditional format formula, but I am able to get the start cell for each row, can kind of get the end cell (see below).
Cell address of the first populated cell in the row (*the data starts on row 2, the values begin in column C and end in column P):
{=(ADDRESS(2,COLUMN(INDEX(C2:P2,MATCH(1,IF(C2:P2<>0,IF(C2:P2<>"",1)),0)))))}
^ this gets me an absoluted text-version of the leftmost populated cell in each row. I have all these addresses in a helper column. I am then able to get the desired stopping-point for the format (12th cell to the right of the cell returned from above formula), but I have to manually enter the cell address derived from above formula:
=ADDRESS(2,COLUMN(OFFSET(N2,0,11,1,1)))
I can't nest the start cell formula inside this second formula or it breaks.
THANK YOU!
Desired result (ignore the different colors, they can be the same):