Resource Usage Profile, Y axis as men

I'm trying to show Resource Usage Profile, as stacked and have the Y axis display men. When it displays units on the Y axis they are displayed as hours or days dependend upon my selection in preferences under the Time Units Section.  I would like to be able to show the number of men per week or month instead of hours per week or month.  I was able to fake these results by selection the At Completion Costs instead of At Completion Units and then setting the labor cost to one dollar and un-checking the currency symbol then entering "men" in the unit of measure