Add ability to use Chart Functions in the Tool Tip section
I have a line chart showing absolute values of money spent against budget. I want to add another field, budget spent as % of budget, as a tooltip. Before I try, there's the appearance that this chart accepts a tooltip:
But then when I drag in the tooltip field, it becomes greyed out and says on mouseover, "Tooltip fields are currently unsupported for this chart type."
Is there a way I can get the % variable to display as a tooltip?