I am the person that will be helping you today.
May I ask for you to explain what you are in search of? I am not quite understanding your description.
May I ask for a few examples?
I will be standing by.
I look forward to helping you. I don't know what you are actually looking for. What does it mean when you say that you want to do this without "performing the function for each column"? You can write the formula in one of the columns and then copy the cell into the other columns.