How are dataset variables used? As far as I can tell, there is no documentation about variables in datasets other than, "Select the add variable icon, , to add a variable, expression, and description information." What happens after that? Where is the variable used? How is it used? My ultimate question is, can I create a custom query such as "select … from $log where $filter and sentbyte >= @MinimumBytes"? Can I have a MinimumBytes variable which is threshold value configurable within a Chart or Report? Sometimes I want to report on large file transfers (e.g., >= 1 MB) and sometimes I want to include smaller file transfers (e.g., >= 5 KB). Do I need two different datasets or can I have one dataset which is filtered by a variable?
