See code below ---instead multiplying the fields by 0's and 1's. I want to have predefined cases where I want to have a user input the case # in a inputbox. For example, if user enters 1, then the defined parameters are applied. How do I do this?---------------------------------------------------------------------CASE 1; x1=1, x2=1, x3=0, x4=0then --->x1 * [Territory Product Sales]!CurrMth + x2 * [Territory Product Sales]!PrevMth + x3 * [Territory Product Sales]![2PrvMth] + x4*[Territory Product Sales]![3PrvMth] AS TTDPrdSales--------------------------------------------------------------------CASE 2; x1=1, x2=1, x3=1, x4=0then--->x1 * [Territory Product Sales]!CurrMth + x2 * [Territory Product Sales]!PrevMth + x3 * [Territory Product Sales]![2PrvMth] + x4*[Territory Product Sales]![3PrvMth] AS TTDPrdSales---------------------------------------------------------SELECT [Territory Product Sales].Territory, [Territory Product Sales].Product, [Territory Product Sales].[Market Name], [Territory Product Sales].[ME Number], [Territory Product Sales].CurrMth, [Territory Market Sales].MktCurrMth, [Territory Product Sales]!CurrMth + 1*[Territory Product Sales]!PrevMth + 1*[Territory Product Sales]![2PrvMth] + 0*[Territory Product Sales]![3PrvMth] AS TTDPrdSales, [Territory Market Sales].MktCurrMth+1*[Territory Market Sales].MktPrevMth + 1*[Territory Market Sales].Mkt2PrvMth + 0*[Territory Market Sales].Mkt3PrvMth AS TTDMktSales, 0*[Territory Product Sales]!PrevMth + 0*[Territory Product Sales]![2PrvMth] + 1*[Territory Product Sales]![3PrvMth] + 1*[Territory Product Sales]![4PrvMth] + 1*[Territory Product Sales]![5PrvMth] + 1*[Territory Product Sales]![6PrvMth] + 0*[Territory Product Sales]![7PrvMth] AS PrvTriProdSales, 0*[Territory Market Sales].MktPrevMth + 0*[Territory Market Sales].Mkt2PrvMth + 1*[Territory Market Sales].Mkt3PrvMth + 1*[Territory Market Sales].Mkt4PrvMth + 1*[Territory Market Sales].Mkt5PrvMth + 1*[Territory Market Sales].Mkt6PrvMth + 0*[Territory Market Sales].Mkt7PrvMth AS PrvTriMktSales,