I install this today and so far I am having great success creating the reports we need; however I've run into one issue that I can't seem to get around. I have two column that I need to subtract. It the subtraction of these two column = 0, then I need to ignore these row from the report. I have the column on the manipulate tab, and it is giving me the correct difference. How do I set up a criteria on the select tab to use this function? Only bring back the rows where column1 - column2 > 0?