[Will Thompson] I've just merged a couple of very close scenarios, which all have similar great ideas! Something we're considering for the future, so I'm keen to hear your feedback on this. I like this core scenario of a numeric value that is bound to a slider control, and can then be used as part of some expression. - In a sales report, I can adjust a '% increase' slider to see what impact a small change in revenue might have had on my sales. - In a mortgage calculator, I can change the % rate, borrowed amount and term to see projected repayments - In a quota report I might change a 'Opportunity confidence' control to see the likely bonus I could earn at the end of the year. Please, keep voting and help us prioritize this! Original suggestions follow: So this scenario brings what-if-analysis to the visualization without changing the underlying data source. Let's say I have a table that has numeric values (integers, floating values, etc.). I created a chart (column, line, etc.) visual of that table data. Then instead of using SUM, AVG, COUNT, DISTINCT COUNT, I now can use a math expression applied to the numeric value (say I want to see what my chart looks like if I increase sales by 10%). Then I would see the new column in my table (calculated column with new values). I can now add that new column to the chart and graph that, labeling that as 'if sales increased by 10%' to show how that would compared to the actual numbers I see.