HI, I have multiple workbooks (Excel 2007) feeding into a master worksheet to create my company's financial models. I am trying to create a control of sorts that I could use on any of the sheets (each representing a department) to convert the values in various ranges to 0 so that I can model spinning off a division. I have been using IF statements for the cells containing data and basing it off of a cell at the top of the sheet that I have as being either 1 or 0 as the conditional in the function. My problem is that I know which cells I have modified and which need to be modified, but I cannot hand this off to an assistant to input budgetary numbers - so far the amount of IF functions and data entry has led to many typos... Does anyone know of a way that I could "turn a sheet on or off" using either a macro or combination of functions? Your help is very much appreciated.