Is it possible to show a custom tooltip whenever a user hovers over a slice of a pie chart, or column in a bar chart using Simple XML with splunk js?

Is it possible to show a custom tooltip whenever a user hovers over a slice of a pie chart, or column in a bar chart? I have been looking at this [blog about adding custom tooltip to a table][1], but I cannot see how to apply that to a chart. The ChartView in splunkjs does not have similar methods as the TableView for adding a renderer. I have data that contains a code (userid) and the name associated with the code (among other things). I am creating a pie chart to display counts by code. However, when the user hovers over the pie-slice, I want to display the code, the name and the counts/percentage in the tooltip. Customers want to count by code, but be able to see what the code maps to in the tooltip. My search looks like this: index=yc | stats sum(counts) as counts values(fullName) as fullName by userid| sort -counts | head 10 In statistics view, this gives me: **userid count fullName** jdoe 35424 John Doe bsmith 4342 Bob Smith mjones 4212 Mary Jones jdoeadeer 1234 John Doe ... So if the user hovers over the largest pie slice I'd like the tooltip to display userid: jdoe fullName: John Doe counts: 35424 counts%: 78.2 [1]: http://blogs.splunk.com/2014/01/29/add-a-tooltip-to-simple-xml-tables-with-bootstrap-and-a-custom-cell-renderer/