Right now you can currently only sort stacked charts when there is a string value on the x axis. We would like the ability to be able to sort the data by series or by data value (high to low). Additionally, it would be great if the sort function in charts was more in depth so that you could sort all chart types (table, stacked, etc). It would also be nice if you could add two sorts to a table (similar to excel or other data viz tools).