Keeping all data on one row in chart

[EastCoastBum]

I am new to cognos, and have been working on an issue regarding keeping data on one row. I am pulling in two sets of data and adding them together to keep it all on one row. The one column giving me trouble is one that holds the name of the user that updated the information. In some instances, there are multiple names making it bump down to the next row. I want to take the original person and disregard all other names. Any specific method to complete this?