Insert Bold Line After Counting Cell Values

I have 32 different columns with similar data, but I want to have a formula that counts the value inside the cells. I want it to count to 120, then 240, and then 360, and after each of those cells are totaled and meet 120 then have a bold line drawn across several cell and continue counting until the value is equal to 240 (then another bold line is drawn) and then 360. I actually have 4 seperate columns that I want to add up individually to do this with.

I know this is very confusing but could anyone help me?

Thank you.

I actually didn't think about that but not even sure how to do it...