Yeah, it would be quite easy to do it with SQL based BI tools, as long as you can invert the selection back into a where clause. The tricky bit is overlaying th

Yeah, it would be quite easy to do it with SQL based BI tools, as long as you can invert the selection back into a where clause. The tricky bit is overlaying the new data on top of the old (especially when you completely filter out some subset of the data, like a few bars from a barchart).